intrinsic or true back muscles Flashcards
1
Q
role of intrinsic back muscles
A
extend the vertebral column/head
rotate the vertebral column/head
innervated by dorsal rami of spinal nerves
2
Q
intrinsic muscles include
A
splenius muscles
erector spinac muscles
transversospinalis muscles
3
Q
concern of Ibjm
A
maintenance of posture and movements of vertebral column
4
Q
position of ibm
A
deep to the extrinsic musculature of the back
5
Q
three layers
A
superficial, intermediate, deep
6
Q
superficial layer is
A
splenius group - located on the back of neck, has fibers passing superolaterally
7
Q
intermediate layer is
A
erector spinae group, has fibers running longitudinally
8
Q
deep layer
A
transversospinalis group, has fibers that run superomedially
9
Q
what innervates all intrinsic back muscles
A
dorsal rami of spinal nerves
