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Anatomy and Physiology Lab > a&p quiz 6 > Flashcards

a&p quiz 6 Flashcards

1
Q

the _____ is the most superficial membrane of the meninges

A

dura mater

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2
Q

the inferior end of the adult spinal cord terminates

A

inferior to L1

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3
Q

the dorsal root of spinal nerves contains

A

sensory neurons

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4
Q

which of the following is not part of the gray matter of the spinal cord?

A

lateral funiculus

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5
Q

the central canal of the spinal cord is located within the

A

gray comissure

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6
Q

the brachial plexus is formed from components of spinal nerves C5-T1

t/f

A

true

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7
Q

there are right pairs of cervical spinal nerves

t/f

A

true

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8
Q

the major ascending (sensory) ad descending (motor) tracts compose the gray matter of the spinal cord

t/f

A

false

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9
Q

the spinal cord gives rise to 31 pairs of _____

A

spinal nerves

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10
Q

the bulge in the spinal cord that gives off nerves to the upper limbs is called the ____ enlargement

A

cervical

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11
Q

the bulge in the spinal cord that gives off nerves to the lower limbs is called the _____ enlargement

A

lumbar

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12
Q

the _______ is a groove that extends the length of the spinal cord posteriorly

A

median suculus

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13
Q

in a spinal cord cross section, the posterior ____ of the gray matter resembles the upper wings of a butterfly

A

horn

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14
Q

the axons of motor neurons are found in the _____ roots of spinal nerves

A

ventral

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15
Q

the ______ connects the gray matter on the left and right sides of the spinal cord

A

gray commissure

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16
Q

the _____ in the gray commissure of the spinal cord contains cerebrospinal fluid and is continuous with the cavities of the brain

A

central canal

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17
Q

the white matter of the spinal cord is divided into anterior, lateral, and posterior ____ that contain ascending and descending tracts

A

funiculi

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18
Q

there are _____ pairs of cervical spinal nerves

A

8

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19
Q

there are ___ pairs of sacral spinal nerves

A

5

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20
Q

cervical spinal nerve pair C1 originates between the foramen magnum of the occipital bone and the ___

A

atlas

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21
Q

spinal nerves L4 through S4 form a ____ plexus

A

sacral

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22
Q

the gray matter of the spinal cord is divided into anterior, lateral, and posterior _____

A

horns

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23
Q

the spinal cord ends inferior to L1 in a tapered point called the _____-

A

cauda equine

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24
Q

the impulse over a motor neuron will lead to

A

an effector

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25
Q

stretch reflex receptors are called

A

muscle spindles

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26
Q

stretch reflexes include all of the following except the ___ reflex

A

withdrawal

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27
Q

a withdrawal reflex could occur from

A

touching a hot object

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28
Q

the calcaneal reflex response is

A

plantar flexion of the foot

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29
Q

the quadriceps femoris is the effector muscle of the patellar reflex

t/f

A

true

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30
Q

the dorsal root of spinal nerves contain the axons of the motor neurons

t/f

A

false

31
Q

the normal patellar reflex response involves extension of the leg at the knee

t/f

A

true

32
Q

a reflex arc begins with the stimulations of a ____ at the dendrite end of a sensory neuron

A

receptor

33
Q

the effector muscle of the patellar reflex is the ____

A

quadriceps femoris

34
Q

the sensory stretch receptors (muscle spindles) of the patellar reflex are located in the ____ muscle

A

extensor

35
Q

the dorsal root of a spinal nerve contains the ____ neurons

A

motor

36
Q

the normal plantar reflex in _____ of toes

A

flexion

37
Q

stroking the sole of the foot in infants results in dorsiflexion and toes that spread apart, called the _____ reflex

A

babinski

38
Q

the primary olfactory interpretation center is located in the

A

inferior nose

39
Q

the cornea and the sclera compose the

A

outer layer

40
Q

we are able to see color because the eye contains

A

cones

41
Q

the perception of vision occurs in the

A

occipital lobe of the cerebrum

42
Q

which of the following is not part of the middle eye layer?

A

conjunctiva

43
Q

the area of our eye where visual acuity is best is the

A

fovea centralis

44
Q

the conjunctiva covers the superficial surface of the cornea

t/f

A

true

45
Q

tears from the lacrimal gland eventually flow through a nasolacrimal duct into the nasal cavity

t/f

A

true

46
Q

posterior five-sixths of middle (vascular) layer

A

choroid

47
Q

white part of outer (fibrous) layer

A

sclera

48
Q

transparent anterior portion of outer layer

A

cornea

49
Q

inner lining of eyelid

A

conjunctiva

50
Q

secretes tears

A

lacrimal gland

51
Q

fills posterior cavity of eye

A

vitreous humor

52
Q

area where optic nerve exits the eye

A

optic disc

53
Q

smooth muscle that controls that pupil size and light entering the eye

A

iris

54
Q

fills anterior and posterior chambers of the anterior cavity of the eye

A

aqueous humor

55
Q

contains photoreceptor cells called rods and cones

A

retina

56
Q

connects lens to ciliary body

A

suspensory ligament

57
Q

cause the lends to change shape

A

ciliary muscle

58
Q

as a person ages, the elasticity of the lens

A

decreases

59
Q

visual acuity is measured using a

A

Snellen eye chart

60
Q

the blind spot is located at the ___ of the eye

A

optic discs

61
Q

astigmatism results from a defect in the

A

curvature of the cornea or lens

62
Q

nearsightedness is also called myopia

t/f

A

true

63
Q

what is meant by 20/70 vision

A

someone can see at 20 feet what people can see at 70 feet

64
Q

what is meant by 20/10 vision

A

someone can see at 20 feet what most can see at 10 feet

65
Q

what visual problem is created by astigmatism?

A

some parts of vision is blurred

66
Q

hearing is interpreted in the ____ lobe of the cerebrum

A

temporal

67
Q

sound loudness is measured in

A

decibels

68
Q

the middle ear bones articulate from tympanic membrane to oval window in which of the following sequences

A

malleus, incus, stapes

69
Q

the ____ test is done to assess possible conduction deafness by comparing bone and air conduction

A

rinne

70
Q

which of the following structures is part of the inner ear?

A

cochlea

71
Q

the pharyngotympanic tube connects the outer ear to the inner ear

t/f

A

false

72
Q

the cochlear nerve serves as the hearing branch of the vestibulocochlear nerve

t/f

A

true

73
Q

endolymph is located within the cochlear duct of the cochlea

t/f

A

true

Anatomy and Physiology Lab (13 decks)

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