Back Muscles Flashcards
1
Q
What is the extrinsic group of back muscles responsible for?
A
Upper limb movement and respiration
2
Q
What is the intrinsic group of back muscles responsible for?
A
Maintaining posture and control movement of the vertebral column
3
Q
What muscles are responsible for flexion?
A
Muscles anterior to the spine
- recuts abdominis
- psaos major
4
Q
What muscles are responsible for extension?
A
Muscles posterior to the spine
- erector spinae
5
Q
What muscles are responsible for rotation and lateral flexion?
A
Muscles with oblique fibre orientation
- external oblique
- internal oblique (opposite side)
- erector spinae
6
Q
What does dehydration of intervertebral discs through ageing lead to?
A
Reduced shock absorption
