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Need To Recall > Nerves > Flashcards

Nerves Flashcards

1
Q

termination of spinal cord

A

Conus terminalis (cone shape)

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2
Q

Extensions of spinal nerves below its terminal end (horsetail-like)

A

Cuada equina

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3
Q

What passes thru optic canal

A

Optic nerve, ophthalmic artery

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4
Q

Largest branch of ophthalmic nerve

A

V1

Frontal nerve

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5
Q

Smallest branch of ophthalmic nerve

A

Lacrimal nerve

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6
Q

Sensory innervation to lacrimal gland

A

Lacrimal nerve

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7
Q

Parasympathetic neurons to lacrimal gland

A

VII - greater petrosal nerve

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8
Q

Innervates anterior 1/3 of palate

A

Nerve of scarpa/nasopalatine nerve

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9
Q

Innervates soft palate

A

Lesser/posterior palatine nerve

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10
Q

Parasympathetic neurons to submandibular gland

A

VII Chorda tympani

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11
Q

Parasympathetic nerve to sublingual gland

A

VII Chorda tympani

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12
Q

Parasympathetic neurons to parotid gland

A

IX tympanic nerve / Jacobson’s nerve

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13
Q

Sensory of parotid gland

A

Auriculotemporal nerve (V3)

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14
Q

Gives rise to ASAN, MSAN

A

infraorbital nerve

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15
Q

Innervates skin of the face

A

CN V

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16
Q

Only sensory branch in the anterior division of mandibular nerve

A

Long buccal nerve

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17
Q

Only motor branch in the posterior division of mandibular nerve

A

Mylohyoid nerve

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18
Q

Spicy taste is transmitted by what nerve

A

Lingual nerve (V3) not VII since spicy is pain and heat sensation

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19
Q

Innervates the anterior belly of digastric muscle

A

V3 - mylohyoid nerve

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20
Q

Innervates sensory of TMJ

A

Auriculotemporal nerve (v3)
Remember: parehas sila ng parotid. Magka-area

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21
Q

Innervates dura mater

A

Meningeal nerve (v3)

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22
Q

Which ear ossicle is attached to the tensor tympani nerve?

A

Malleus

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23
Q

Foramen of exit of facial nerve

A

Stylomastoid foramen

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24
Q

CN responsible for gag reflex (sensory and motor)

A

Sensory: IX
Motor: X

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25
Q

Somatic motor to stylopharyngeus muscle

A

CN IX
Only muscle it supplies

Most muscle of palate and pharynx (X)

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26
Q

Nerve for balance

A

VIII vestibular nerve

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27
Q

Nerve for hearing

A

VIII cochlear nerve

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28
Q

Prevents over inflation of lungs

A

Herring bruer reflex (CN X)

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29
Q

CN XI foramen

A

Enters skull via foramen magnum, exits via jugular foramen

30
Q

Only neck muscle innervated by cranial nerve

A

Trapezius
SCM

Both by CN XI

31
Q

Innervates palatoglossus

A

CN X (pharyngeal plexus IX and X)
Most extrinsic muscle of tongue is innervated by CN XII except palatoglossus

32
Q

Parasympathetic fibers for SA and AV nodes

A

CN X

33
Q

Sympathetic fibers for SA node and AV node

A

T1-T4

34
Q

Innervates the tensorsss

A

V3

35
Q

Gives rise to supratrochlear and infratrochlear nerve

A

Frontal nerve (v1) to supratrochlear (skin above medial canthus)

Nasociliary nerve (v1) to infratrochlear (skin adjacent to medial canthus)

36
Q

Innervates the accessory glands (PSNS)

A

Greater petrosal nerve (VII). Chorda tympani for submandibular and sublingual glands (psns)

37
Q

Innervates somatic and visceral sensory from posterior 3rd of tongue

A

Glossopharyngeal nerve (IX) via lingual branch

38
Q

Innervates the baroreceptors and chemoreceptors (PSNS and SNS)

A

Hering’s nerve (IX)
Carotid sinus (baroreceptors) and carotid bodies
-bifurcation is located at c3 and c4

39
Q

Parasympathetic Ganglion of CN IX

A

Otic ganglion
*Parotid gland

40
Q

motor nucleus of CN III and its location/function

A

Oculomotor nuclei (motor) - midbrain
Edinger-westphal nucleus (autonomic/parasympathetic) -midbrain

41
Q

Motor nuclei of CN VII and location

A

Facial nucleus (motor) - pons
Superior salivatory nucleus (secretory/ parasympathetic) -pons

42
Q

Location of nucleus ambiguus and cranial nerves

A

Medulla
CN IX, X, XI
Motor

43
Q

Motor nuclei of CN X

A

Dorsal motor nucleus of the vagus (autonomic/parasympathetic) - medulla

44
Q

Location of motor nuclei of CN XI

A

Accessory nucleus located in the cervical spinal cord
Motor
Remember nucleus ambiguus din

45
Q

Sensory nuclei for taste and location

A

Nucleus of solitary tract
Solitary nucleus

+Sensory of CN VII, IX, and X
Pons and medulla

46
Q

Sensory nucleus for jaw jerk reflex and location

A

Mesencephalic nucleus (CN V)
Midbrain and pons

47
Q

Sensory nucleus for blink reflex and location

A

trigeminal main sensory nuclei
Or descending tract of CN V
+Sensory function of CN V (touch on the face)
Pons

48
Q

longest intracranial nerve

A

trochlear nerve
-also the smallest cranial nerve

49
Q

responsible for myelin sheath production in CNS? PNS?

A

Oligodendrocytes - cns
Schwann cells - pns

50
Q

what is foramen of monro?

A

interventricular foramen

*CSF pathway

51
Q

CSF pathway

A

lateral ventricles - foramen monro - third ventricle - cerebral aqueduct of sylvius - fourth ventricle to foramen magendie or to foramen luschka – spinal canal – subarachnoid space

52
Q

group of ependymal cells that produces CSF

A

choroid plexus

53
Q

anatomic part of brain that produces csf

A

ventricle

54
Q

structures that reabsorb CSF

A

arachnoid villi

55
Q

Le fort fracture most common to produce CSF rhinorrhea

A

III > II

56
Q

Degeneration of distal segment

A

Wallerian degeneration

57
Q

Myelin sheath is damaged

A

Neuropraxia

58
Q

Myelin sheath + endo and/or perineurium

A

Axonotmesis (with wallerian degeneration)

59
Q

All layers of nerve are damaged including epineurium

A

Neurotmesis (wallerian degeneration)

60
Q

Compare the different nerve fibers

A

a fibers - myelinated - largest - fastest pain - slowest anes
b fibers - unmyelinated - sensation from viscera to the brain and spinal cord
C fibers - unmyelinated - smallest - slowest pain - fastest anes

61
Q

Types of nerve fibers supplying the pulp

A

A-delta, C fibers

62
Q

Innervation of gallbladder

A

Vagal fibers from celiac plexus

63
Q

Innervation of intestinal walls?
Sympathetic?
Parasympathetic?

A

Sym: splanchnic nerve - slows motility

Parasym: vagus nerve - increase motility

64
Q

Innervation of esophagus?

A

Motor: Recurrent laryngeal nerves (X)
Sym: esophageal plexus of nerves
Parasym: esophageal of vagus

65
Q

Innervation of large intestines

A

Vagus nerve: ascending and transverse colons
Pelvic splanchnic nerves: descending, sigmoid colon, rectum, anus

66
Q

Major barrier of anesthesia

A

Perineurium (surrounds a group of axon called fascicle)

67
Q

Largest branch of sacral plexus

A

Sciatic nerve

Sacral plexus is L4 to S4

68
Q

Largest branch of lumbar plexus

A

Femoral nerve

Lumbar plexus is L1 to L4

69
Q

Spinal plexuses and what contributes to each plexus

A

Cervical c1-c4
Brachial c5 to t1
Lumbar l1 to l4
Sacral l4 to s4

70
Q

Patch of skin innervated by a spinal nerve

A

Dermatome

71
Q

Part of brain involved in regulation of internal temperature

A

Hypothalamus

72
Q

Part of brain responsible for balance

A

Cerebellum

Need To Recall (19 decks)

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