Muscles and Their Associated Cranial and Spinal Nerves (from Lectures 7&8)

Question 1

muscles of facial expression are controlled by which cranial nerve?

Answer 1

CN VII

Question 2

the extra-ocular muscles are innervated by:

Answer 2

CN III, IV, and VI

Question 3

the muscles of mastication are innervated by:

Answer 3

CN V3 (the mandibular branch of the trigeminal nerve)

Question 4

the tongue muscles are innervated by:

Answer 4

CN XII

Question 5

the pharyngeal muscles are innervated by:

Answer 5

CN X (the vagus nerve)

Question 6

these muscle are innervated by both cranial and cervical nerves

Answer 6

neck muscles

Question 7

the muscles in the back are all innervated by:

Answer 7

spinal nerves (cervical to sacral)

Question 8

the intercostal muscles are innervated by:

Answer 8

thoracic nerves

Question 9

C3, 4, 5 keeps the _____ alive

Answer 9

diaphragm

Question 10

the adominal muscles are innervated by:

Answer 10

thoracic and lumbar nerves

Question 11

innervated by the pudendal nerve (S2-S4 sacral spinal nerves)

Answer 11

pelvic and perineal muscles

Question 12

the appendicular muscles are innervated by spinal nerves forming:

Answer 12

plexuses

Question 13

the trapezius is innervated by ____, a spinal accessory nerve

Answer 13

CN XI

Question 14

the upper limbs are innervated by the _____, which extends from levels _____ to _____ of the spinal cord

Answer 14

brachial plexus, C5, T1

Question 15

the lower limbs are innervated by the _____, which extends from levels _____ to _____ of the spinal cord

Answer 15

lumbosacral plexus, L2, S4