Question

question 55
0.25 pts
the flexor muscles that move the fingers are mostly located on the:

anterior lateral surface of the forearm.

anterior medial surface of the forearm.

posterior surface of the forearm.

posterior surface of the hand.

question 56
0.25 pts
the origin of a muscle is on the femur, and the insertion is on the tibia. when it contracts, it bends the knee. its fibers run parallel to the body. which of the following terms might be part of its name?

rectus

oblique

femoris

both a and c

question 57
0.25 pts
most muscles span a joint.

true

false

Explanation:

Question 55

The flexor muscles for finger movement (like flexor digitorum superficialis and profundus) are located on the anterior (volar) medial surface of the forearm. Anterior lateral forearm has extensors or radial flexors, posterior forearm has extensors, and posterior hand doesn't have main finger flexors.

• "Rectus" means fibers run parallel (straight), matching the muscle’s fiber direction.
• "Femoris" relates to the femur (origin), so the muscle could include "femoris" in its name.
• "Oblique" means fibers run at an angle, which doesn’t match. So both "Rectus" (A) and "Femoris" (C) apply, so "Both A and C" is correct.

Most muscles span a joint to enable movement by attaching to bones on either side of the joint (origin on one bone, insertion on another), allowing contraction to move the joint. So the statement is true.

Answer:

B. anterior medial surface of the forearm.

Question 56