muscles of the trunk Flashcards
1
Q
Diaphragm
A
Dome shaped
Involved in increasing thoracic volume during inspiration
When it contracts it descends.
2
Q
What do the anterior back muscles do when both left and right muscles contract simultaneously?
A
Extension-
3
Q
What do the posterior back muscle do when both left and right muscles contract simultaneously?
A
Flexion
4
Q
Which are the main posterior back muscles?
A
Erector Spinae
5
Q
Which are the main anterior back muscles?
A
The anterior abdominal wall muscles
6
Q
What movements are involved when only one side of the body moves?
A
Lateral flexion
Rotation
7
Q
When can the limbs contribute to movement in the back?
A
When the limbs are immobilised
8
Q
which actions are associated with contraction of anterior and posterior muscles simultaneously?
A
Child birth
Vomiting
Excretion
