Midterm Flashcards
(255 cards)
1
Q
What part of your arm is most proximal?
A
Shoulder
2
Q
Your stomach represents what level of organization?
A
Organ
3
Q
What would a regional anatomist study?
A
how adrenaline from glands affects the heart
4
Q
A tonsillectomy removes an element from which body system?
A
lymphatic and immune
5
Q
An organ is a part of the body composed of two or more tissue types and is designed to perform at least one specific physiological function.
A
True
6
Q
If your body was a car, the epithelial tissue would be:
A
The exterior paint
7
Q
What might be studied as part of a course on gross anatomy?
A
the stomach
8
Q
The word physiology comes from a combination of the Greek words for “motion” and “knowledge.”
A
True
9
Q
Lipids are produced by mitochondria and are used for energy in just about everything we do.
A
False
10
Q
Which cell component is most connected to your immune system?
A
lysosomes
11
Q
Interphase is the longest period of the cell cycle.
A
True
12
Q
How many different types of cells are there in the human body?
A
Over 200
13
Q
The outermost part of the cell is referred to as the cytoplasm.
A
False
14
Q
Negative feedback loops are ____; positive feedback loops are ____.
A
inhibitory; stimulatory
15
Q
When do cells duplicate their DNA and other organelles?
A
interphase
16
Q
What joints are a good representation of diarthroses?
A
leg bone connected to your hip
17
Q
Bursitis can be inferred to be a disease that might affect:
A
your knees, elbows, shoulders, and so on.
18
Q
Red blood cells are produced by:
A
your bones.
19
Q
Imagine an archeologist said they found an “osseous knife” used by ancient humans. What would you expect the knife to be made of?
A
bone
20
Q
Many skeletons used in the United States came from an underground, illegal “bone trade” with Russia.
A
False
21
Q
Your nasal passages (nostrils) lead to which type of depression?
A
sinus
22
Q
Which muscle in your body is one of the strongest, able to exert more force than most other muscles?
A
jaw muscle
23
Q
Imagine a woman wearing a purse strapped across her body, with the strap on her left shoulder and the purse itself on her right side. What is this most analogous to in terms of muscle fiber directions?
A
transverse
24
Q
Involuntary muscles are controlled by the nervous and endocrine systems.
A
True
25
What best describes how scientists name the muscles in the human body?
Muscles were given names according to size, location, shape, and direction of fibers.
26
Over half of your body is muscle tissue.
False
27
The muscle that does the majority of work in a movement Is called the prime mover.
True
28
What is the final stage of a typical muscle contraction, ending the contraction?
ACh breaks down through its own natural cycle.
29
You’ve discovered a body in an ancient ruin quite similar to ours but with slightly different muscles. What function would make the most sense for a muscle made of skeletal tissue, with an origin position supra the sternum, stretched in an oblique pattern with a second, distal origin position at the base of a rib? (Again, it’s very similar to human musculature.)
provide cushion for the ribs
30
Your friend Khamil experienced a sharp, intense pain when he contracted his leg muscle running. Assuming this is indeed a muscle strain, it would be described as:
active
31
_____ produce the sheaths that protect some _____.
Oligodendrocytes; axons
32
The eyes contain well over half of the body’s sensory receptors.
True
33
The PNS is divided into two subsections: the autonomic nervous system and the manual nervous system.
False
34
The spinal cord is the largest organ in the peripheral nervous system (PNS).
False
35
Which cranial nerve has both motor and sensory components?
glossopharyngeal
36
If your eye was punctured by a large needle, what gel-like material would come out?
vitreous humor
37
The ears are not only responsible for hearing but also for maintaining balance.
True
38
In the time it takes you to snap your fingers, a nerve impulse could travel the length of a football field.
True
39
The majority of melanomas are caused by:
The sun
40
Full thickness burns are so painful that patients often require specialized painkillers that temporarily “turn off” the nerve endings.
False
41
Which kind of sweat glands are found in the armpits?
apocrine
42
Which kind of burn represents injury, but only to the upper layers of the dermis?
deep partial thickness burn
43
Which type of cancer is most superficial?
squamous cell carcinoma
44
Your massage therapist suggest a new technique for your next session that they call a lamellar technique. What does this suggest your next session will be like?
It will involve deep pressure.
45
Which layer of skin could be thought of as a sturdy raincoat or biohazard suit?
stratum corneum
46
You have heard your friend Lakshmi described as having “thick skin.” If she literally did, what layer of skin would be visible on her but not on someone with “thin skin?”
stratum lucium
47
Psoriasis is classified as an autoimmune disease.
True
48
Cell division
the formation of two daughter cells from a single parent cell
49
Centriole
a cylindrical organelle in animal cells that is involved in cell division.
o Centrioles form spindle fibers which separate chromosomes during cell division.
50
Centromere
he part of a chromosome where the chromatids are attached.
o During mitosis, spindle fibers attach to the chromosome at the centromere.
51
Chromatid
One of two identical halves of a replicated
chromosome.
52
Chromatin
DNA strands in the nucleus during interphase.
o Chromatin stains dark, making it relatively easy to
see. (The Greek root “chroma” means “color.”)
53
Chromosome
a structure formed from condensed
chromatin.
o Chromosomes consist of two identical chromatids
attached at the centromere, giving them a
characteristic “X” shape.
o Chromosomes occur in pairs. Human cells have 23
pairs of chromosomes, or 46 total chromosomes.
54
Cytokinesis
the division of the cytoplasm of the cell to form two daughter cells.
55
DNA
a molecule that carries genetic information.
o DNA stands for deoxyribonucleic acid.
56
Interphase
the period in the cell cycle during which the cell grows, matures, and
duplicates genetic information.
57
Mitosis
the equal division of the chromosomes into two genetically identical daughter
nuclei. Mitosis consists of four stages.
o During prophase, chromosomes form from condensed chromatin.
o During metaphase, the chromosomes line up along the center axis of the cell.
o During anaphase, the chromosomes split up and chromatids are pulled to
opposite ends of the cell.
o During telophase, a new nuclear membrane forms around each set of
chromatids.
Chromosome of identical
chromatids attached at
the centromere
58
Cartilage has the unique ability to contract to pull the bones and help the body move.
False
59
What is the study of the smallest structures in the body called?
microscopic anatomy
60
Your heart is made up primarily of which type of tissue?
muscle tissue
61
If you look at the profile of a person’s body, which body plane would say you are looking at?
sagittal
62
Systematic anatomy focuses on the study of each of the body systems separately.
True
63
The word anatomy comes from Greek for “to cut up.”
True
64
Just as animals are born, grow, reproduce, and die, cells have their own similar lifecycle.
True
65
You’ve reflexively pulled your hand back after touching a stinging jellyfish. What part of the body control mechanism is represented by you taking this action?
effector mechanism
66
Imagine a Greek mad scientist invented a science-fiction gadget that he calls the “homeo” machine. What kind of machine is it most likely to be? (Hint: what does “homeo” from the word “homeostasis” mean?)
a cloning tool
67
Protein synthesis is considered the central catabolic process in the cell.
False
68
What part of the cell is made up of organelles and molecules floating in cytosol?
cytoplasm
69
Which organ system has cells that reproduce through meiosis?
the reproductive system
70
Lipids are produced by mitochondria and are used for energy in just about everything we do.
False
71
If a cell were a country, the RER and Golgi apparatus would be responsible for:
manufacturing and exports.
72
The calcium released from breaking down old bones in your body is mostly released as waste in your urine.
False
73
You’re a forensic scientist who found a bone completely enveloped in tendon. What type of bone would you would guess right away that it was?
sesamoid bone
74
The “neck” of a long bone could also be referred to as:
the cartophysis.
75
What joints are a good representation of diarthroses?
leg bone connected to your hip
76
Most bone development after the age of 18 is considered:
remodeling.
77
Bones aren’t completely rigid; they’re actually strong yet spongy.
True
78
Osteogenic cells are the only bone cells that divide.
True
79
The bone matrix, structurally, is most similar to:
ice cubes
80
What organ systems can require mechanical aid to function day to day for patients with certain kinds of muscular dystrophy?
respiratory and cardiovascular
81
What would happen if you didn’t have any acetylcholinesterase in your body?
Your muscles would get too many signals to contract.
82
You’ve discovered a new species and are naming its muscles. Which common naming trend for human muscles is especially useful for differentiating among multiple muscles that all perform similar functions?
size
83
Acetylcholinesterase gives the command that causes muscles to contract; acetylcholine ensures the message only goes through once.
False
84
Which kind of muscles would contract to allow you to stretch out your fingers (as if you were indicating the number five?)
extension
85
Your heart works by:
entirely involuntary muscle contraction.
86
A section of the brain that receives and processes auditory (sound)
signals from the ear.
Auditory Cortex
87
Which muscle in your body is one of the strongest, able to exert more force than most other muscles?
jaw muscle
88
Involuntary muscles are controlled by the nervous and endocrine systems.
True
89
located on the temporal lobe of the cerebral cortex, which
is on the outside of the brain above the ears.
Auditory Cortex
90
A nerve that carries sound signals from the cochlea to the brain.
Auditory nerve
91
Which type of cell reacts to protect threatened brain tissue?
microglia
92
Your hypoglossal nerve XII is:
the most anterior of the cranial nerves.
93
responsible for the integration of complex neural signals and the
initiation and coordination of voluntary activity in the body
Cerebrum
94
You look at a nerve cell under a microscope and see something that looks like a tiny tree stretching outwards. What function does this part of the cell perform?
receives stimuli that is sent to the body and axon
95
A light-sensing cell embedded in the retina at the back of the eye in vertebrates. Responsible for color vision, works best in bright light
Cone
96
The PNS is divided into two subsections: the autonomic nervous system and the manual nervous system.
False
97
The ____ is like a radio or cell phone speaker; the ____ is like a radio or cell phone antenna.
axon; dendrite
98
Most of the functions of your intestines are a result of the signals sent by your:
autonomic nervous system (ANS).
99
Humans have three types of ____ that respond to red, green, and blue light
Cones
100
Which skin layer is most closely related to your immune system?
stratum spinosum
101
a section of the brain that receives and processes taste signals from
the mouth and tongue.
Gustatory cortex
102
If you touched a stinging nettle plant, what kind of receptor would be stimulated?
nociceptor
103
A local art exhibit is described as an experiment in tactile sensations. What does this suggest about the installation?
The art can be lightly touched.
104
sensory receptors in the ear that convert sound vibrations to neural signals
Hair cells
105
You have heard your friend Lakshmi described as having “thick skin.” If she literally did, what layer of skin would be visible on her but not on someone with “thin skin?”
stratum lucium
106
A section of the brain, located below the thalamus, that controls many
unconscious functions including body temperature, thirst, hunger, and sleep.
Hypothalamus
107
Melanoma takes the life of one person in North America every hour.
True
108
Besides avoiding harmful sun exposure, what other common practice can you use to help improve the survivability of melanomas?
early detection through self-examination
109
Done without conscious control
Involuntary
110
Which area of the body would be susceptible to bacterial infections, given the environment bacteria flourish in?
armpits
111
What are the two types of infection common to the integumentary system?
bacterial and fungal
112
A signal that is transmitted along a nerve fiber
Nerve Impulse
113
A series of connected nerves along which an electrical impulse travels through the body
Neural Pathway
114
A cell that is able to transmit neural impulses from one part of the body to another
Neuron
115
Which part of a cell is most like the cockpit of a plane?
the nucleaus
116
The thoracic and abdominal cavities are the largest body compartments.
False
117
A section of the brain that receives and processes olfactory (smell)
signals from the nose.
Olfactory cortex
118
One popular method of describing the abdomen involves terms like iliac, lumbar, epigastric, and hypochondriac.
True
119
What is an example of something studied on the molecular level (as opposed to the atomic level)?
water
120
A structure located above the nose that receives signals from the
sensory neurons in the nose and sends those signals to the olfactory cortex in the brain
for processing.
Olfactory bulb
121
Thanks to modern technology, students across the globe no longer use physical cadavers as gross anatomy classes exclusively use virtual-reality type systems.
False
122
Memorizing all the bones in your body is _____; understanding how food is digested in your body is:
anatomy; physiology.
123
A nerve behind the eye that transmits signals from the retina to the brain.
Optic nerve
124
How are cancer cells different from normal human cells?
They reproduce quickly and have different life cycles.
125
A light sensing cell embedded in the retina at the back of the eye in vertebrates
Rod
126
Protein molecules floating in a cell naturally move out of it when there is a higher concentration of protein in a cell than outside of it. This equalization of these molecules is an example of which process?
diffusion
127
Which substance is most similar to a lipid in how it interacts with water?
melted candle wax
128
A neuron that converts stimuli from the environment to internal
electrical signals.
Sensory Neuron
129
Active transport processes differ from passive transport processes because active processes require ___.
energy
130
A stressor can be something “good” or pleasant as well as something bad.
True
131
A section of the brain that receives and processes sensory
stimuli from the skin, muscles and joints. Located in the parietal lobe, which is on the top of the brain above the ears. It detects and interprets information on touch, temperature, pressure, and pain
Somatosensory cortex
132
Catabolic metabolism is most similar to:
a fire breaking down carbon to create heat
133
The heart is made up mostly of nervous and connective tissue.
False
134
The outermost part of the cell is referred to as the cytoplasm.
False
135
Gametes, unlike most other human cells, replicate through _____.
meiosis
136
Which joint is a good representation of amphiarthroses? The joint connecting:
your tibia to your fibula (shinbone and lower leg bone).
137
Anerve that carries touch signals from the body to the brain
Somatosensory nerve
138
An athlete has been reported to have a torn meniscus. What kind of ailment are they experiencing?
a sore knee joint
139
A bundle of neurons inside the spine that connects nearly all parts of the
body below the head to the brain.
Spinal Cord
140
You’re a forensic scientist who discovers a frozen body with a broken leg. The fracture is narrow, and a hard callus seems to have formed. What could you safely estimate about the length of time between the leg breaking and the time of death?
The victim died at least three weeks after breaking their leg.
141
As you age, your hip bones go through:
intramembranous ossification.
142
____ is the development of bone as an embryo; ____ is the development of bone across our entire lives.
Calcification; ossification
143
A detectable change in the internal or external environment
Stimulus
144
A leg bone’s diaphysis would be found at its:
body
145
What joints are a good representation of diarthroses?
leg bone connected to your hip
146
A part of the brain through which sensory impulses are passed before
reaching the cerebral cortex.
Thalamus
147
A major brevis muscle would be:
large but short
148
a section of the brain that receives and processes visual (light) signals
from the eye. Located in the back of the brain
Visual cortex
149
What best describes how scientists name the muscles in the human body?
Muscles were given names according to size, location, shape, and direction of fibers.
150
What is the purpose of the gap between motor neurons and myofibers?
It contains a medium that helps transmit synaptic signals.
151
Order these terms from more basic to more complex (for example, cell-tissue-organ)
myofilaments-myofiber-sarcomere
152
A good example of involuntary muscle contraction would be:
contractions during childbirth.
153
The heart is so strong that each pump is distributing blood to the proximal ends of your fingers and toes as well as your vital organs.
True
154
Based on the name, what would you expect of the lumbrical muscles in your hand?
worm shaped
155
How is muscular dystrophy contracted?
through DNA
156
Which two types of glia are both glue-like?
Schwann cells and oligodendrocytes
157
The spinal cord is the largest organ in the peripheral nervous system (PNS).
False
158
There are more than 100 pairs of spinal nerves that extend from the lateral aspect of the spinal cord, corresponding with each vertebra.
False
159
Your hypoglossal nerve XII is:
the most inferior of the cranial nerves.
160
Inside your eye are two kinds of sensory nerves, shaped like spheres and pyramids, which variously distinguish dim light and motion or color and fine detail.
True
161
Basal cell carcinoma is the most common form of skin cancer.
True
162
Based on the name, you would guess that the lesions that indicate ringworm would be:
annular
163
George burnt his fingertips so badly that he can’t feel anything with them anymore. Which part of his skin must have been damaged?
papillary layer
164
Melanoma, which can be many different shades and shapes, would best be described as:
polymorphous
165
A birthmark is generally a:
macule
166
What refers to clear, fluid-filled blisters greater than 10mm in diameter?
bullae
167
Due to a hair-pulling accident, Annika has a new bald spot on her head. Which layer of her skin will be most involved in the process of growing over this bald spot?
reticular layer
168
What organ systems can require mechanical aid to function day to day for patients with certain kinds of muscular dystrophy?
respiratory and cardiovascular
169
What best describes how scientists name the muscles in the human body?
Muscles were given names according to size, location, shape, and direction of fibers.
170
Skeletal muscles are smooth, mostly involuntary tissue.
False
171
As humans enter old age, they all:
shrink in height
172
Antagonists can be described as:
working to support the agonist.
173
You’ve discovered a body in an ancient ruin quite similar to ours but with slightly different muscles. What function would make the most sense for a muscle made of skeletal tissue, with an origin position supra the sternum, stretched in an oblique pattern with a second, distal origin position at the base of a rib? (Again, it’s very similar to human musculature.)
provide cushion for the ribs
174
Imagine a woman wearing a purse strapped across her body, with the strap on her left shoulder and the purse itself on her right side. What is this most analogous to in terms of muscle fiber directions?
transverse
175
Muscles can be described as:
distributed across both the appendicular and axial areas of the body.
176
Smooth muscle tissues engage in both involuntary and voluntary muscle contractions, depending on their location and specific function.
True
177
Which part of a neuron is most similar to other cells in the body?
body
178
When your doctor tests your reflexes by tapping your knee with a hammer, what part of your nervous system is responding?
spinal cord
179
You look at a nerve cell under a microscope and see that is has one axon and no dendrites. What type of neuron must it be?
unipolar
180
You just drank a super-giant-size soda and a child you are babysitting jumps on your stomach, creating an intense urge to urinate. What sensor is responding and causing this sensation?
mechanoreceptors
181
While as children we are taught that we have five senses, in truth, depending on how they are grouped, there are as many as 21 different senses.
True
182
The PNS is divided into two subsections: the autonomic nervous system and the manual nervous system.
False
183
To detect a damaged spinal nerve, you might apply ice to a place on the skin surface called a(n):
dermatome
184
A confluent lesion pattern is when two distinct, but separate, lesions are on one part of the body (e.g., multiple ant bites on a foot).
False
185
The materials produced by your sebaceous and sweat glands not only lubricate and hydrate but also have antibacterial and antifungal properties.
True
186
What kind of lesion is likely an indication that someone has a nasty itch?
excoriation
187
Freckles on someone’s cheeks would likely be described as:
grouped
188
What refers to clear, fluid-filled blisters greater than 10mm in diameter?
papule
189
Suzie has a bacterial infection that she caught after she had previously cut her hand. What category of infection is this?
secondary infection
190
Your doctor tells you that, according to test results, the marks on your skin are malignant. What is the doctor telling you?
The marks indicate a dangerous disease.
191
A patient of yours has a bit of psoriasis on just their left elbow. What term most accurately describes this lesion pattern?
localized
192
You know that Eustace is taking a pill to treat a skin infection. What can you surmise about his infection?
It’s a bacterial infection.
193
The heart refills with blood when it relaxes briefly between each contraction.
True
194
The insertion point of a muscle is attached to a (usually immovable) bone, while the origin refers to the kind of tissue that makes up the muscle.
False
195
Juana has just been diagnosed with muscular dystrophy. What is, most likely, her age?
3 weeks
196
What is a common treatment for minor muscle strains?
rest, ice, and anti-inflammatories
197
You’ve discovered a new species and are naming its muscles. What terms would make sense for a muscle group in the front of their chest that, when contracted, pushes the ribs away from each other and the heart?
anterior abductors
198
What is one major intersection between the muscular system and the nervous system?
muscle spindles
199
In a walk-in freezer, your muscles would ____; in a sauna, they would begin to _____
contract; relax
200
Which of the following is a chemical (as opposed to, say, a fiber or cell)?
neurotransmitter
201
You’ve discovered a new species and are naming its muscles. Which common naming trend for human muscles is especially useful for differentiating among multiple muscles that all perform similar functions?
size
202
Based on the name, you could guess your biceps:
have two origin points.
203
An ulcer, or painful tear in your stomach lining, provides stimulus for your:
nociceptors
204
The nervous system is complex but is composed of only three organs: your brain, your spine, and your somatic (sensory) nerves.
False
205
Using meditation to de-stress after a rough day would tap into your:
parasympathetic nervous system.
206
Seeing a rainbow stimulates your:
photoreceptors
207
Which two parts of the brain are related to breathing?
pons and medulla oblongata
208
The axon and dendrite are called nerve fibers because they are extensions from the cell body of the neuron.
True
209
Cranial nerves originate from:
the inferior surface of the brain.
210
Which of the following represents how neurologists would refer to the “third” cranial nerve?
III
211
When a doctor tests your reflex by tapping your knee with a rubber hammer, it sends a sensory signal to the spinal cord, down the descending tract, and to the brain.
False
212
If someone suffered a severe burn, which layer of skin’s destruction would mean they absolutely would need a skin graft to recover—that no natural recovery would be possible?
stratum granulosum
213
A homeless person has developed a skin infection that seems to be largely the result of his routine lack of hygiene rather than as a result of injury or specific exposure. What kind of infection is this?
primary infection
214
Which layer of skin is mostly connective tissue, binding the inner and upper layers of the skin?
dermoepidermal junction
215
The materials produced by your sebaceous and sweat glands not only lubricate and hydrate but also have antibacterial and antifungal properties.
True
216
Which layer of skin is most responsible for transmitting sensory signals from the skin to other organs?
reticular layer
217
Which skin layer is most closely related to your immune system?
stratum spinosum
218
Eccentric contraction is to concentric contraction as:
stretching is to shrinking.
219
Most points of connection between your muscle and shinbone would be expected to be:
origins
220
Muscle strains are most common in older people, whose muscle mass has decreased over time.
False
221
What best describes how scientists name the muscles in the human body?
Muscles were given names according to size, location, shape, and direction of fibers.
222
Which type of muscle tissue has interlocking fibers, allowing the transmission of the message to contract to pass through them very quickly?
cardiac
223
You’ve discovered a new species and are naming its muscles. One of its muscles is very wide, though not particularly large otherwise; what would be a good term to use in naming it?
latissimus
224
In the first step of the sliding filament theory, which electrolyte is released to activate the muscle fibers?
calcium ions
225
The nervous system is unique in that it’s not composed of cells; instead, it’s made up of fibers called neurons and glia.
False
226
The reflex arc is a single conduction route from the receptors to the CNS and out to the effectors.
True
227
Which type of glia are most similar to your skin cells?
ependymal
228
Imagine you were a neurologist, and you discovered that your patient experienced damage due to their brain not receiving necessary oxygen and nutrients; further examination indicates this was a result of a ruptured blood vessel. In their medical chart, you might enter this as:
G04.30 – Acute necrotizing hemorrhagic encephalopathy, unspecified.
229
Microglia are classified as glia, but they really do not have any relation to the other nervous system cells.
True
230
Your hypoglossal nerve XII is:
the most inferior of the cranial nerves.
231
Oh no! Your neurons are not getting the energy they need to function; which nervous system component is failing?
astrocyte
232
The hypodermis is, technically, not a layer of the skin, but it is still an important component of the integumentary system.
True
233
If you touched a stinging nettle plant, what kind of receptor would be stimulated?
nociceptor
234
How does the integumentary system help keep you warm in winter?
Your blood vessels constrict.
235
Herman was hit by a stray pitch in a baseball game, leaving a lesion on his shoulder. What medical term refers to the kind of mark this would leave?
purpura
236
The vast majority of dust that accumulates in rooms is actually dead skin cells.
True
237
Seasonal affective disorder has been linked to a deficiency of melatonin, which stores energy from sunlight.
False
238
When you cut your nails, you are trimming:
the nail plate
239
Which type of burn is most benign?
superficial partial thickness burn
240
Order these terms from more basic to more complex (for example, cell-tissue-organ)
myofilaments-myofiber-sarcomere
241
Muscular dystrophy is best described as:
a chronic disease that progressively worsens over time.
242
Your friend Khamil experienced a sharp, intense pain when he contracted his leg muscle running. Assuming this is indeed a muscle strain, it would be described as:
active
243
Looking at some unknown muscle tissue under a microscope, you see cells that are not striated, are thick in the middle and tapered at the ends, and that create a sheet of tissue. What part of the body could this tissue have come from?
the intestinal track
244
Your friend Estaban says he has a “visceral” reaction to seeing a dead insect. What does this mean?
He has a reaction in the pit of his stomach.
245
The spinal cord is the largest organ in the peripheral nervous system (PNS).
False
246
In the movie Jurassic Park, the Tyrannosaurus Rex was infamously poor at detecting prey that stood still. If its eyes were anything like a human’s, that must mean it had poor:
cones
247
Which nervous cells actually help signal enzymes that help digestion?
gustatory cells
248
Even though it’s the second largest part of the brain, the cerebellum is often called the “little brain.”
true
249
The nervous system is complex but is composed of only three organs: your brain, your spine, and your somatic (sensory) nerves.
false
250
Clapping your hands involves the:
somatic nervous system.
251
The reflex arc is a single conduction route from the receptors to the CNS and out to the effectors.
true
252
Most of the functions of your intestines are a result of the signals sent by your:
autonomic nervous system (ANS).
253
What kind of injury would most likely come from an unfortunate slide into home in a baseball game?
erosion
254
Which element of the integumentary system is responsible for acne in adolescents?
sebaceous glands
255
During which season of the year will your nails grow most quickly?
summer
