Back Muscle Groups Flashcards
1
Q
What are the two classifications of back muscles?
A
EXTRINSIC GROUP
- upper limb movement and respiration
INTRINSIC GROUP
- superficial, intermediate (erector spine) and deep layers
- maintain posture
- control movement of the vertebral column
2
Q
what is the movement of muscles anterior to the spine?
A
Flexion (bilateral)
3
Q
what is the movement of muscles posterior to the spine?
A
Extension (bilateral) eg erector spinae
4
Q
What is the relationship between the erector spinae and the vertebral column?
A
- Extension of VC (bilaterally)
- Lateral flexion of VC (unilaterally)
