Oblique and Rectus Muscles

Question 1

scalenes (anterior, middle, and psoterior)

Answer 1

elevates ribs and/or flexes neck; one side bends neck and rotates the head to opposite side

Question 2

external intercostals

Answer 2

elevates ribs

Question 3

internal intercostals

Answer 3

depress ribs

Question 4

external obliques

Answer 4

compresses abdomen, depresses ribs; flexes, laterally flexes or rotates vertebral column to the opposite side

Question 5

internal obliques

Answer 5

same as external but rotates vertebral column to the same side

Question 6

transverse abdominus

Answer 6

compresses abdomen

Question 7

Rectus group

Answer 7

rectus abdominus and diaphragm

Question 8

rectus abdominus

Answer 8

depresses ribs, flexesvertebral column, and coompresses abdomen

Question 9

diaphragm

Answer 9

forms floor of thoracic cavity

contraction expands thoracic cavity, compresses abdominopeliv cavity. When it contracts it flattens