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Neurology > cranial nerves > Flashcards

cranial nerves Flashcards

1
Q

collections of cell bodies of nerves located outside the brain/spinal cord =

A

ganglia

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2
Q

CNI

A

Olfactory , SENSORY

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3
Q

CNII

A

Optic, SENSORY

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4
Q

CNIII

A

Ocuolomotor, MOTOR

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5
Q

CNIV (4)

A

Trochlear, MOTOR

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6
Q

CNV

A

Trigeminal, BOTH

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7
Q

CNVI (6)

A

Abducens, MOTOR

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8
Q

CNVII (7)

A

Facial, BOTH

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9
Q

CNVIII (8)

A

Vesibulocochlear, SENSORY

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10
Q

CNIX (9)

A

Glossopharyngeal, BOTH

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11
Q

CNX (10)

A

Vagus, BOTH

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12
Q

CNXI (11)

A

Accessory, MOTOR

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13
Q

what are the 3 sensory only cranial nerves

A

I,II,VIII (8)

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14
Q

what are the 4 mixed cranial nerves

A

V, VII, IX, X
5, 7. 9, 10

trigeminal, facial, glossopharyngeal, vagus

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15
Q

what are the 2 types of motor axons that innervate skeletal mm’s

A

branchial - innervate mm’s that develop from pharyngeal arches

somatic - innervate mm’s that develop from head somites for eye and tongue mm’s

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16
Q

CNXII

A

Hypoglossal, Motor

17
Q

mnemonic for remembering sensory/motor/both in order

A

some may marry money but my brother says big brains matter more

18
Q

sensory = unipolar

A

interneurons = bipolar
motor = multipolar

19
Q

CN II - Optic =

A

Sight

each optic nerve controls half of each eye
optic nerves cross in the optic chiasma

20
Q

CN XII (12) Hypoglossal =

A
  • devoted solely to tongue
  • motor

origin= medulla
ends = tongue

21
Q

CN XI - Accessory =

A
  • supplies somatic motor innervation to traps and SCM
  • Motor

origin = medulla
ends - traps, SCM

22
Q

CN X - Vagus

A

mixed
motor origin= medulla
ends = mms of pharynx, larynx, soft palate used in swallowing, vocalization, coughing, lungs, heart, GI tract glands, esophagus, stomach, gallbladder, sm intestine, most of large intestine

Neurology (7 decks)

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