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Flashcards in NERVES Deck (35):
1

Mixed nerves

Motor and sensory nerves

2

Motor nerves

axons with only motor neurons

3

sensory nerves

axons with only sensory neurons

4

how many spinal nerves?

31 pairs
almost all are mixed

5

how many cranial nerves?

12 pairs

6

Spinal nerve

Anterior root
Posterior root
Posterior root ganglion
Spinal nerve

7

Sensory info

Travels into spinal cord POSTERIOR root

8

Motor info

travels out from spinal cord ANTERIOR root

9

Posterior horn

interneurons and sensory nerves

10

Lateral horn

autonomic motor neurons

11

Nerve plexuses

Brachial
Lumbar
Sacral

12

plexus

intertwine to create a network of nerves

13

Bracial Plexus

Radial nerve
Median nerve
Ulnar nerve

14

Ulnar nerve

Motor:
hand muscles, a few finger flexors

Sensory:
skin on 1/2 of hand
temperature, pain, touch sensations start there then travel ulnar nerve to spinal cord and then to brain

15

Median nerve

Motor:
forearm. pronation, wrist flexors, finger flexors, thumb movers

Sensory:
some of the hand. mainly fingers

16

Radial nerve

Motor:
supinator, wrist extenders, thumb extenders, trcieps, brachiaradilis

Sensory:
Skin on back of arm, triceps, hand, knuckles

17

Lumbar Plexus

Femoral nerve & Obturator nerve

18

Femoral nerve

MMotor:
Quar, sactorius, iliopsoas, pectineus

Sensory:
front of thigh and moving medially down to foot

19

Obturator Nerve

Motor:
Leg adductor

Sensory:
small medial side of thight

20

Sacral Plexus

Tibial nerve & common fibular

21

Tibial nerve

Motor:
Back of leg
hamstring
Plantor flexors

Sensory:
BOTTOM OF FOOT

22

Common fibular nerve

Motor:
Front of leg, biceps femoris, fibularis muscles, tibias anterior, toe extenders

Sensory:
bottom half of leg, lateral area & front area and top of foot

23

Cranial Nerves

Olfactory
Optic
Oculomotor
Trochlear
Trigeminal
Abducens
Facial
Vestibulocochlear
Glossopharyngeal
Vagus
Accessory
Hypoglossal

24

Olfactory nerve

CN I
Sensory: SMELL

25

Optic

CN II
Sensory VISION

26

Oculomotor

CN III
Motor
Move eyeballs & muscles in eyeballs

27

Trochlear

CN IV
Muscles that move eyeballs

28

Abducens

CN VI
muscles that move eyeballs

29

Trigeminal

CN V
Sensory: info from head & face
Motor: chewing

30

Facial

CN VII
Sensory: tongue, anterior, taste touch temp
Motor: facial expression

31

Vestibulocochlear

CN VIII
Sensory:
equilibrium
hearing from cochlea

32

glossopharyngeal

CN IX
Sensory: 1/3 posterior tongue: taste touch temp
Motor: throat muscles, swallowing

33

vagus

CN X
Sensory: pharynx, larynx, esophagus, & viscera of the thorax and abdomen
Motor: Swallowing, autonomic info: heart, smooth muscle, glands

34

accessory

CN XI
motor
neck and shoulder muscles

35

hypoglossal

CN XII
Motor
muscles BELOW tongue, moving tongue