cranial nerves, spinal chord, spinal nerves

Question 1

I

Answer 1

name: olfactory
function: sensory
origin: olfactory receptors

Question 2

II

Answer 2

name: optic
f: sensory
O: retina

Question 3

III

Answer 3

N: oculomotor
F: motor
O: midbrain

Question 4

IV

Answer 4

N: trochlear
F: motor
O: midbrain

Question 5

V

Answer 5

N: trigeminal
F: mixed
O: pons

Question 6

VI

Answer 6

N: abducens
F:motor
O: pons

Question 7

VII

Answer 7

N: facial
F: mixed
O: pons/ taste receptors

Question 8

VIII

Answer 8

N:vestibulocochlear
F: sensory
O: inner ear receptors

Question 9

IX

Answer 9

N: glossopharyngeal
F: mixed
O: medulla oblongata

Question 10

X

Answer 10

N: vagus
F: mixed
O: medulla oblongata

Question 11

XI

Answer 11

N: accessory
F: motor
O: medulla oblongata

Question 12

XII

Answer 12

N: hypoglossal
F: motor
O: medulla oblongata

Question 13

SPINAL CHORD

Answer 13

meninges (dura mater, arachnoid mater, pia mater
meningeal space: subarachnoid space, epidural space
filum terminal (conus medullaris to coccyx)
-denticulate ligaments (lateral extensions of pia mater that connect to dura mater)
white columns
-anterior, posterior, lateral
gray mater
-posterior horn, anterior horn, lateral horn
-gray commissure
posterior median sulcus
anterior median fissure
central canal
conus medullaris
cauda equina
spinal nerve: dorsal root, dorsal root ganglion, ventral root, dorsal ramus, ventral ramus, rami comunicans

Question 14

spinal nerves

Answer 14

31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal

Question 15

nerve plexuses and innervation

Answer 15

cervical plexus
brachial plexus
lumbar plexus
sacral plexus

Question 16

cervical plexus

Answer 16

C1-C4
innervates muscles of neck and diaphragm
-phrenic nerve

Question 17

brachial plexus

Answer 17

c5-t1

innervates pectoral girdle and upper limb

Question 18

lumbar plexus

Answer 18

T12-L4
innervates pelvis and lower limbs
-femoral nerve

Question 19

sacral plexus

Answer 19

L4-S4

• innervates pelvis and lower limbs
• sciatic nerve