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PNS KZ > Final > Flashcards

Final Flashcards

1
Q

Compared to unmyelinated axons, myelinated axons:

A

Conduct impulses faster

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2
Q

Which nerve passes posterior to the medial epicondyle of the humerus?

A

Ulnar

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3
Q

What is the “blind spot” of the eye?

A

Starting point of optic nerve

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4
Q

Which nerve runs with the hypoglossal nerve?

A

Geniohyoid N.

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5
Q

All of the following are mechanoreceptors EXCEPT: Follicular receptor, Thermoreceptor, Pacinian Corpuscle, Meissners Corpuscle

A

Thermoreceptor

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6
Q

What is the fluid in the scala tympani?

A

Perilymph

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7
Q

What are the structures coming directly out from the spinal cord?

A

Rootlets

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8
Q

Neurons that conduct nerve impulses from the receptors to the CNS are?

A

Sensory

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9
Q

What dermatome is at the umbilicus?

A

T10

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10
Q

The end of the paravertebral ganglion is the?

A

Ganglion Impar

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11
Q

Which fiber type responds to stretch (as in the knee tap reflex)?

A

1a = One “A”

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12
Q

The elongated nerve root from L2-S2 are called?

A

Cauda Equina

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13
Q

What cranial nerve delivers presynaptic parasympathetic fibers to adbominal viscera?

A

Vagus

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14
Q

In what substance are the stereo cilia of spiral organ hair cells embedded?

A

Cupula

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15
Q

Which muscle is innervated by two branches of Ansa Cervicalis?

A

Omohyoid

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16
Q

The glossopharyngeal nerve provides parasympathetic innervation to the:

A

Parotid gland

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17
Q

Loss of cutaneous sensation and paralysis of muscles on the medial plantar side of the foot indicates damage of which nerve?

A

Tibial

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18
Q

The sympathetic division of the ANS is also referred to as the:

A

Thoracolumbar division

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19
Q

The greater occipital nerve is derived from the:

A

Dorsal rami of C2

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20
Q

Which nerve pierces the anterior surface of the psoas major, runs inferiorly, and innervates the genitalia and femoral triangle?

A

Genitofemoral

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21
Q

The tympanic nerve is a branch from which cranial nerve?

A

Trigeminal

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22
Q

What type of fibers are in the main facial root (facial nerve proper)?

A

Parasympathetic

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23
Q

What nerve provides the preganglionic GVE innervation to the submandibular ganglion?

A

Chorda tympani

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24
Q

Which range of spinal cord segments contribute to the cervical plexus?

A

C1 - C4

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25
Q

Crossed effects are associated with which reflex?

A

Withdrawal

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26
Q

Which fiber transmits signals the slowest?

A

“C”

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27
Q

What is the connective tissue layer that encloses a single nerve fiber?

A

Endoneurium

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28
Q

“Special” functional components get their name b/c:

A

They are derived from the pharyngeal arches

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29
Q

Which nerve roots form the lumbosacral trunk?

A

L4, L5

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30
Q

Satellite cells:

A

Surround neuronal cell bodies

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31
Q

Compensatory eye mvmt is stimulated by activating the:

A

Superior olive

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32
Q

Which of the following is false?

A

The fibers from the lateral half of the retina cross at the optic chiasm.

(fibers from the lateral half of the retina remain on it’s ipsilateral side - do not cross)

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33
Q

Which organelle produces glycoproteins and lysosomes?

A

Golgi body

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34
Q

Where are the olfactory (receptor) nerves?

A

Nasal epithelia

35
Q

The jxn b/w two nerve cells is called:

A

Gap jxn

36
Q

Which supraclavicular branch is AKA the anterior branch?

A

Medial

37
Q

What cranial nerve opening does the trochlear nerve pass through?

A

Superior Orbital Fissure

38
Q

A patient comes in having burned the tip of the tongue. What nerve was stimulated?

A

Trigeminal

39
Q

Which nerve carries the motor component of the trigeminal nerve?

A

Mandibular

40
Q

What is in the epidural space surrounding

A

Fat

41
Q

The pudendal nerve originates from the anterior division of:

A

S2, S3, S4

42
Q

What root(s) contribute to the phrenic nerve?

A

C3, C4, C5

43
Q

The ciliary body is in the same optic layer as?

A

The choroid

44
Q

What cranial opening does the vagus nerve pass through to exit the skull?

A

Jugular foramen

45
Q

The olfactory tract are the axons of which cells?

A

Mitral

46
Q

Which nerve branches directly from a root?

A

Long thoracic

47
Q

Which roots contribute to the radial nerve?

A

C5, C6, C7, C8, T1

48
Q

Which cranial nerve exits caudal to the inferior colliculus?

A

Trochlear

49
Q

Which is a vagus nerve ganglion?

A

Geniculate

50
Q

What ganglion does the preganglionic parasympathetic fibers of the oculomotor nerve synapse in?

A

Ciliary

51
Q

Which type of glial cell is a satellite cell most like?

A

Astrocyte

52
Q

What type of cells are located in the ventricular zone of the neural tube?

A

Pluripotent stem cells

53
Q

What cranial nerve innervates the inferior oblique?

A

Oculomotor

54
Q

The upper and middle trunks of the brachial plexus combine to form the ___ cord.

A

Lateral

55
Q

Which splanchnic nerves receive their input from the sympathetic trunk levels T10 and T11?

A

Lesser

56
Q

What is the minimal number or neurons required for a simple reflex circuit?

A

2

57
Q

What functional component is associated w/ taste?

A

SVA

58
Q

What type of reflex is stimulated by tapping the patellar tendon?

A

Myotatic

59
Q

Which of the following is true of BOTH the parasympathetic and sympathetic divisions of the ANS?

A

They use acetylcholine as the NT in the ganglia.

60
Q

Where are the receptors for the auditory system?

A

Spiral organ

61
Q

Which layer of the neural tube produces stem cells?

A

Ventricular

62
Q

The jxn b/w an axon and a muscle fiber is called?

A

Neuromuscular jxn

63
Q

Which nerve carries GSA input from the mucosa of the anterior 2/3rd of the tongue?

A

Mandibular

64
Q

Which cell (soma) is a part of the PNS?

A

Multipolar neuron

65
Q

What nerve innervates the laryngeal mucosa?

A

Internal laryngeal

66
Q

Which of the following converts pressure waves in the endolymph into nerve impulses?

A

Round window

67
Q

The neuroglial cell involved in the blood brain barrier?

A

Astrocyte

68
Q

What fluid bathes the optic nerve?

A

CSF

69
Q

Which are thermoreceptors?

A

Free nerve endings

70
Q

What type of fiber does the intermediate nerve carry?

A

Both motor and sensory

71
Q

There are ___ pairs of spinal nerves.

A

31

72
Q

Which cranial nerve exits caudal to the inferior colliculus?

A

Trochlear

73
Q

What is the most common type of glioma?

A

Astrocytoma

74
Q

Neurons that conduct nerve impulses from the receptors to the CNS are?

A

Afferent

75
Q

Embryologically, the optic nerve is derived from the:

A

Diencephalon

76
Q

The nerves of the brachial plexus innervate the:

A

Upper limb

77
Q

Which plexus is covered by the psoas major?

A

Lumbar

78
Q

Where are the Golgi Tendon Organs?

A

Muscle tendon jxn

79
Q

The ciliary ganglion lies lateral to which nerve?

A

Optic

80
Q

Lesions of the femoral nerve causes which condition?

paralysis of ____

A

Paralysis of Vastus Laterals

81
Q

Which leads to the formation of the filum terminale?

A

Degeneration of the spinal cord

82
Q

What type of photoreceptor is in the fovea centralism of the retina?

A

Cones

83
Q

The sense that tells us which muscles are contracted, the amount of tension in a joint, the positions of the joints, and orientation of the head is called:

A

Proprioception

84
Q

What are the main output neurons from the olfactory bulb?

A

Mitral cells

PNS KZ (1 decks)

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