anatomy Flashcards

(104 cards)

1
Q

Normal blood pH can be described in chemical terms as:

A

slightly alkaline

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2
Q

Oxygen has 8 protons, 8 neutrons, and 8 electrons. what is its atomic mass?

A

16

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3
Q

which of the following is NOT a characteristics of water
- lubricates body surfaces
- high solubility
- low heat capacity
- hydrogen bonding

A

low heat capacity

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4
Q

what is the chemical reactions that release energy?

A

exergonic

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5
Q

what is the term for a reaction involving water, that breaks molecules into smaller fragments

A

hydrolysis

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6
Q

the number of which subatomic particle will vary in different isotopes os an elements ________

A

neutrons

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7
Q

when atoms share electrons what type of bond do they form?

A

covalent

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8
Q

which of the following is the basis of surface tension?
- ionic bonds
- hydrostatic bonds
- hydrogen bonds
- adhesive bonds

A

hydrogen bonds

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9
Q

the number and arrangement of electrons in an atoms outer shell determine its elements

A

chemical properties

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10
Q

when the body generates significant quantities of acids it may disrupt which of the following?
- it will increase pH level above 7.5
- It will decrease the pH level
- it will result in sustained muscular tetany

A

It will decrease the pH le el

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11
Q

the term_________ means enzymes catalyzes inly one type of reaction

A

specificity

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12
Q

A solute that dissociates to release hydrogen ions and causes a decrease in pH is a/an

A

acid

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13
Q

isotopes of an element are

A

atoms whose nuclei have different numbers of neutrons

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14
Q

by weight, which element is the second most abundant in the human body?

A

carbon

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15
Q

the chemical properties of every element are determined by:

A

number and arrangement of electrons in the outer energy level

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16
Q

AB-> A + B is

A

decomposition

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17
Q

A + B -> AB is

A

synthesis

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18
Q

The smallest stable units of matter are

A

atoms

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19
Q

which of the following statements about water is not correct
- it is composed of polar molecules
- it is responsible for much of the mass of the human body
- it has a relatively low heat capacity
- it can dissolve many substances

A

It has a relatively low heat capacity

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20
Q

molecules the do not readily dissolve in water are called

A

hydrophobic

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21
Q

the most abundant high-energy compound in cells is:

A

adenosine triphosphate (ATP)

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22
Q

which of the following is the mechanism of enzymes
- lower activation energy
- add kinetic energy to reactants
- slow down substances
- provide energy to make bonds

A

lower activation energy

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23
Q

the number and arrangement of electrons in an atoms outer shell determine its elements

A

chemical properties

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24
Q

which of the following is the basis of surface tension
- ionic bonds
- hydrostatic bonds
- hydrogen bonds
- adhesive bonds

A

hydrogen bonds

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25
when atoms share electrons what type os bond do they form
covalent
26
the number of which subatomic particle will vary in different isotopes of an element
neutrons
27
what is the term for a reaction involving water, that breaks molecules into smaller fragments
hydrolysis
28
what term is used for chemical reactions that release energy
exergonic
29
oxygen has 8 protons, 8 neutrons, and 8 electrons. what is the atomic mass
16
30
normal blood pH can be described in chemical terms as
slightly alkaline
31
in the membranes 'skin' of the cell what makes up the hydrophobic interior region
fatty acid tails
32
which of the following organelles is often associated with ribosomes? - SER - RER - Golgi apparatus - Peroxisomes
RER
33
Which organelles are responsible for the production of ATP
Mitochondria
34
What do ribosomes produce
protein
35
Which of the following will happen to a human cell in a hypertonic solution - it will swell - it will burst - it will crenate (shrivel) - it will maintain the same
It will crenate (shrivel)
36
What percent of sodium chloride would a solution of normal saline require
0.9 percent
37
synthesis of lipids and glycogen takes place at the what
smooth ER
38
faty acid tails make up the _____ portion of the membrane and are located on the _____ of the membrane
hydrophobic; inside
39
Cells that lack a nucleus
Wear out in a few months
40
active transport requires which molecule
ATP
41
Red blood cells crenate (get spiky) in what type of solution
hypertonic
42
normal saline is which type of solution
isotonic
43
in active transport what provides the energy needed to move ions or molecules across the membrane?
ATP molecules
44
which of the following is an example of both passive and carrier mediated transport - osmosis - exchange pump - facilitated diffusion - endocytosis
facilitated diffusion
45
which method of transport is responsible for low sodium and high potassium in the cell
active transport
46
what type of cell in the human body possess a flagellum
sperm cell
47
for most of their lives cells are in which phase
interphase
48
Most of the ATP required to power cellular operation is produced in the
mitochondria
49
Synthesis of lipids and glycogen takes place at the
smooth ER
50
The stage in a cells life in which the cell performs its normal functions and prepares for division is called
interphase
51
water molecules and small ions enter a cell through
channels formed by integral proteins
52
carrier molecules are located within the
plasma membrane
53
functions of the plasma membrane include all of the following except - separation of the cytoplasm from the extracellular fluid - regulation of exchange of materials with the extracellular environment - sensitivity to chemical changes in the extracellular fluid - thermal insulation
thermal insulation
54
the extra cellular fluid in most tissues is called the _______ fluid
interstitial
55
__________ is when a vesicle fuses to the plasma membrane and discharges its contents to the extracellular environment
exocytosis
56
the _________ of a membrane indicates how easy it is for substances to cross
permeability
57
the effect of diffusion in the body is:
to work toward elimination of the concentration gradient
58
What is the study of tissue called
Histology
59
What is the study of tissue called
Histology
60
what is in the right upper quadrant (RUQ)
- liver - gallbladder - large intestine - small intestine
61
what is in the right lower quadrant (RLQ)
appendix
62
what is in the left upper quadrant
- stomach - spleen
63
what is in the left lower quadrant
- urinary bladder
64
which of the following would be considered the largest organ of the body - heart - skin - liver - brain
skin
65
the primary function of the skin is to
protect underlying body tissues
66
which of the following is the major contributor to skin wrinkling - chronic UV exposure - poor nutrition - excessive skin moisture - inherited genetic factors
chronic UV exposure
67
the outer layer of skin is known as:
Epidermis
68
flat <1 cm of skin with change in skin colour: ex. are freckles, petechiae, measles what's it called
macule
69
tumour consisting of blood or lymph vessels
angioma
70
redness that occurs in patches of various size and shape
erythema
71
greyish blue skin tones, esp. in nail beds and earlobe
cyanosis
72
yellowish green colour most often seen in scerla and palms of hand and soles of feet
jaundice
73
blue-gray birthmark on lower back/buttocks of newborn:
mongolian spot
74
the advantage of increased surface area of papillary ridges is to
aid attachment of epidermis to the dermal layer
75
which of the following is NOT a function of the skin - thermoregulation - immune responses - sex hormone production - salt and waste excretion
sex hormone production
76
Melanocytes are located in the stratum
basale
77
Blisters and other healing events heal slowest in
the elderly
78
the sweat glands that are located in limited regions of the body such as axillary and pubis are called
apocrine
79
nail production occurs at the nail
root
80
when the arrestor pili muscles contract what is formed
goose bumps
81
glands that are located in the passageway of the external ear are called ______ glands
ceruminous
82
what type of burn appears inflamed and feels tender but has no blisters
first degree
83
the majority of the vascularization of integumentary tissue is in the
dermis
84
which facial bone contains a sinus
maxilla
85
which type of vertebra is the most numerous
thoracic(12)
86
which bone is the manubrium part of ?
sternum
86
with which vertebrae do the floating ribs articulate
thoracic 11 and 12
87
which bone attaches the appendicular skeleton to the sternum
the clavicle (appendicular skeleton is arms and legs)
88
which hip bone bears the body's weight when seated
ischium (ischial tuberosity)
89
which of the following is typical of a female pelvis
pubic angle > 100 degrees (everything is more open for child bearing)
90
what covers the surface of bone at the articulating surface within a synovial joint
articular cartilage (makes it smoother)
91
which of these refers oto moving the sole of the foot medially - dorsiflexion - eversion - protraction - inversion
inverion
92
which of the following can successfully be treated with surgical joint replacement - osteoarthritis - osteoporosis - rheumatism - osteopenia
osteoarthritis
93
Which of these surrounds a muscle fascicle
Perimysium
94
Which term refers to the plasma membranes of a muscle cell
Sarcolemma
95
Which of these is the part of the muscle fibre simulated by a motor neuron Synaptic cleft Junctional fold Sarcolemma Motor end plate
Motor end plate
96
What ion flows when a nerve ending stimulates a muscle cell
Sodium
97
What chemical is secreted by motor neurons at neuromuscular junctions in skeletal muscle
Acetylcholine
98
I hide of the following end the stimulation of the muscle fibre - calcium - sodium - AChE - ACh
AChE
99
What ion trigger the movement of troponin to expose actins active site
Calcium
100
What name is given for the point of attachment of a muscle on the move able end
Insertion
101
Which of these rotates the neck - platysma - sternocleidomastoid - trapezius
Sternocleidomastoid
102
The major extensor of the elbow is
Triceps brachii
103
The major extensor of the elbow is
Triceps brachii