(muscles of torso)9

Question 1

Action of internal oblique?

Answer 1

lps: aids rotation of trunk to same side and lateral flexion of trunk to same side.

Bil: aids flexion of trunk

Question 2

Action of quadratus lumborum?

Answer 2

ilps : Lateral flexion of trunk
BIl:Provide lateral stability to vertebral column.

Question 3

Erector spinea action:

Answer 3

Consists of the iliocostalis; longissimus, and spinalis muscles

Question 4

Rectus Abdominis:

Answer 4

Flexes trunk , depresses ribs , upwardly rotates the pelvis

Question 5

external intercostals

Answer 5

: Elevates rib cage, aids inspiration.

Question 6

Diaphragm:

Answer 6

Contraction pulls the central tendon inferior and increases the superior-inferior thoracic cavity dimensions

Question 7

Transverse abdominis

Answer 7

Compresses abdominal cavities