introduction to muscular system

Question 1

covers an individual muscle fiber

Answer 1

endomysium

Question 2

covers a bundle of skeletal muscle fibers

Answer 2

perimysium

Question 3

covers the whole muscle fiber

Answer 3

epimysium

Question 4

organelle packed with myofilaments

Answer 4

myofibril

Question 5

transverse tubule and its flanking terminal cisternae

Answer 5

triad

Question 6

invagination of the sarcolemma

Answer 6

transverse tubule

Question 7

the region of sarcolemma across from the axon terminal at the neuromuscular junction

Answer 7

motor end plate

Question 8

consists of actin, troponin, tropomyosin

Answer 8

thin filament

Question 9

stores calcium

Answer 9

sarcoplasmic reticulum

Question 10

consists of myosin

Answer 10

thick filament

Question 11

functional unit of muscle contraction

Answer 11

sarcomere

Question 12

a bundle of muscle fibers

Answer 12

fascicles

Question 13

cytoskeletal elements

Answer 13

neurofibrils

Question 14

gaps between schwann cells

Answer 14

nodes of ranvier

Question 15

contain synaptic vesicles

Answer 15

axon terminals

Question 16

produce neurotransmitters

Answer 16

nissl bodies

Question 17

terminal branch of axon

Answer 17

telodendria

Question 18

List the three categories of neurons based on structure.

Answer 18

multipolar neurons
bipolar neurons
unipolar neurons

Question 19

List the three categories of neurons based on function.

Answer 19

afferent, efferent, interneurons

Question 20

in order of the neuron smear structure from middle to outward

Answer 20

NCADG
nucleolus
nucleus
cellbody
axon
dendrites
glia

Question 21

components of nerve from middle to outwards

Answer 21

myelin sheath
axon
endoneurium
perineurium
epineurium

Question 22

houses the corpora quadrigemina

Answer 22

midbrain

Question 23

components of the diencephalon

Answer 23

thalamus, epithalmus, hypothalmus

Question 24

connects the third and fourth ventricles

Answer 24

cerebral aqueduct

Question 25

continuous with the spinal cord

Answer 25

medulla oblongata

Question 26

produces cerebrospinal fluid

Answer 26

choroid plexus

Question 27

components of the brain stem

Answer 27

pons, midbrain, medulla oblongata

Question 28

major homeostatic organ

Answer 28

hypothalmus

Question 29

contains brocas area

Answer 29

cerebrum

Question 30

structure from which the pineal gland extends

Answer 30

epithalmus

Question 31

contains lateral ventricles

Answer 31

cerebrum

Question 32

contains arbor vitae

Answer 32

cerebellum

Question 33

anatomy of the spinal cord from the middle to outward

Answer 33

``` GAP AF gray commissure anterior horn (bottom) posterior horn (top) anterior median fissure funiculi ```

Question 34

12 cranial nerves in order

Answer 34

``` Ooh, Ooh, Ooh, to touch and feel very good velvet. Such heaven I Olfactory (Smell) II Optic (Sight) III Oculomotor (Moves eyelid and eyeball and adjusts the pupil and lens of the eye) IV Trochlear (Moves eyeballs) V Trigeminal (Facial muscles incl. ... VI Abducens (Moves eyeballs) VII Facial (Taste, tears, saliva, facial expressions) VIII vestibularcochlear (auditory) IX glossopharyngeal (swallowing, saliva, taste) X vagus (control of PNS, smooth muscle GI tract) XI Accessory (moveing head and shoulder, swallowing) XII hypoglassal (tongues muscles) ```

Question 35

structure filled with aqueous humor

Answer 35

anterior cavity

Question 36

structure continuous with the optic nerve retina houses the photoreceptors

Answer 36

inner neural layer

Question 37

attachement site for extrinsic eye muscles | sclera and cornea

Answer 37

outer fibrous layer

Question 38

iris, ciliary body, choroid

Answer 38

middle vascular layer

Question 39

structure filled with virtreous humor

Answer 39

posterior cavity

Question 40

eye structure from outward to middle

Answer 40

``` CIPCS cornea iris pupil ciliary body suspensory ligaments ``` ``` RCSOO retina choroid sclera optic disk optic nerve ```

Question 41

List in order the eye structures (internal structures, fluids, and retinal layers) through which light travels from the point at which it enters the eye until it reaches the photoreceptors in the retina.

Answer 41

cornea, aqueous humor, lens, vitreous humor, ganglion cells, bipolar cells, photoreceptor cells