Cervical Plexus Nerves

Question 1

What is the suboccipital nerve?

Answer 1

C1, motor, sensory, P.g.s to sub occipital muscles

Question 2

What does the geniohyoid nerve innervate?

Answer 2

C1, sensory, motor, p.g.s to geniohyoid m., ventral rami

Question 3

What is the function of the thyrohyoid nerve?

Answer 3

C1, sensory, motor, +p.g.s to thyrohyoid m., ventral rami

Question 4

What is the superior root of ansa cervicalis responsible for?

Answer 4

C1, sensory, postganglionic syn, motor fxn to superior belly omohyoid, ventral rami

Question 5

Transverse cervical root, innervation, and function

Answer 5

Sensory + p.g.s to lower scm and anterior neck , c2-c3, ventral

Question 6

What does the lesser occipital nerve innervate?

Answer 6

C2, sensory + p.g.s to skin of posterior lateral aspect of head + upper neck, ventral

Question 7

What is the function of the great auricular nerve?

Answer 7

C2, C3, sensory + p.g.s to skin over upper sternocleidomastoid + lower parotid region and ear. Ventral

Question 8

What does the phrenic nerve innervate?

Answer 8

Sensory, motor, p.g.s to diaphragm.
C3,4,5, ventral

Question 9

What does the inferior root of ansa cervicalis consist of?

Answer 9

C2, C3, ventral, sensory,motor, pgs to sternohyoid, sternothyroid, inferior belly omohyoid

Question 10

What does the transverse cervical nerve provide?

Answer 10

C2, C3, sensory + p.g.s to skin over lower SCM + anterior neck.

Question 11

What does the greater occipital nerve innervate?

Answer 11

Sensory + p.g.s to skin overlying back of head, dorsal, C2

Question 12

Third occipital nerve

Answer 12

C3, dorsal, sensory and pgs of skin over suboccipital triangle

Question 13

Sulraclavicular

Answer 13

Sensory and pgs of skin on lower half of posterior triangle