Muscle and isolated function of Abdominal Musculature

Question 1

Rectus Abdominis

Answer 1

Concentrically accelerates spinal flexion, lateral flexion and rotation

Question 2

External Oblique

Answer 2

Concentrically accelerates spinal flexion, lateral flexion, and contralateral rotation

Question 3

Internal Oblique

Answer 3

Concentrically accelerates spinal flexion, lateral flexion and ipsilateral rotation

Question 4

Transverse Abdominis

Answer 4

Increases intra-abdominal pressure

Supports the abdominal viscera

Question 5

Diaphragm

Answer 5

Concentrically pulls the central tendon inferiorly, increasing the volume in the thoracic cavity