Neck I Flashcards
(5 cards)
1
Q
What is the trapezius and the sternocleidomastoid innervated by?
A
CN XI spinal accessory nerve.
This is a motor (efferent) n.
2
Q
What 3 of the 4 infrahyoid muscles are innervated by the Ansa Cervicalis n?
A
Omohyoid m, sternohyoid m, sternothyroid m.
3
Q
What is the 4th infrahyoid m. innervated by and what is that muscle?
A
the thyrohyoid m. is innervated by C1
4
Q
The platysma m. is innervated by:
A
cervical branch of the facial nerve (VII)
5
Q
What are the 4 cutaneous branches of the cervical plexus?
A
- Lesser occipital n.
- Great auricular n.
- Transverse cervical n.
- Supraclavicular n.
