Superficial and deep back Flashcards
1
Q
What is the difference in the innervation between the extrinsic and intrinsic muscles of the back?
A
- extrinsic innervation: anterior rami (except CN XI)
- includes superficial and intermediate back muscles
- Intrinsic innervation: posterior rami
- associated with vertebral column movements
2
Q
What are the superficial extrinsic back muscles?
A
3
Q
Trapezius
A
4
Q
Lattisimus Dorsi
A
5
Q
Levator Scapula
A
6
Q
Rhomboids major and minor
A
7
Q
What are the intermediate layer of the extrinsic muscles?
A
8
Q
A
9
Q
A
10
Q
What nerve goes between the anterior and middle scalenes?
what does it innervate?
A
Dorsal scapular
innervate: Rhomboids and levator scapula
11
Q
Nerve roots of the throacodorsal n?
A
C6-C8
***innervates the Lats
12
Q
What makes up the suboccipital triagle? What does it contain?
A
Boundaries
- Superolateral: obliquus capitus superior
- Inferior: obliquus capitus inferior
- superomedial: rectus capitus posterior major
Contains:
- Vertebral a.
- suboccipital n. (C1)
