Question

the ________ muscle moves the abdominal wall.

multiple choice

gluteus medius
biceps brachii
gastrocnemius
soleus
external oblique

Explanation:

Identify the target muscle group

Using the Abdominal Wall Muscles knowledge point
The question asks for a muscle that moves the abdominal wall. The muscles of the anterolateral abdominal wall include the rectus abdominis, external oblique, internal oblique, and transversus abdominis.

Evaluate the given options

Using the Obliques Function knowledge point

• gluteus medius: A muscle of the gluteal region (buttock) that abducts and medially rotates the thigh.
• biceps brachii: A muscle of the anterior compartment of the arm that flexes the forearm.
• gastrocnemius: A muscle of the posterior compartment of the leg that plantarflexes the foot.
• soleus: A muscle of the posterior compartment of the leg that plantarflexes the foot.
• external oblique: A superficial muscle of the lateral abdomen that functions to tense the abdominal wall and compress abdominal contents.

Answer:

• gluteus medius
• biceps brachii
• gastrocnemius
• soleus
• external oblique (Correct answer)