Middle Scalene Flashcards
(4 cards)
0
Q
What is the inferior attachment of the middle scalene?
A
superior surface of first rib; posterior groove for subclavian artery
1
Q
What is the superior attachment of the middle scalene?
A
posterior tubercles of transverse processes of C4-C7 vertabrae
2
Q
What innervates the middle scalene?
A
anterior rami of cervical spinal nerves
3
Q
What are the main actions of middle scalene?
A
flexes neck laterally; elevates first rib during forced inspiration
