Semispinalis Cervicis Flashcards
1
Q
origin
A
TPs T1-T5/T6
2
Q
insertion
A
SPs C2-C5
3
Q
innervation
A
medial branches dorsal rami C6-C8
4
Q
blood supply
A
- deep branch of costocervical trunk
- posterior intercostal arteries
5
Q
actions
A
- bilaterally extends vertebral column
- unilaterally rotates vertebral column to opposite side