BY 260 Muscle Anatomy Review

Which two muscles share the same primary action?

• Supinator and pronator teres

• Biceps femoris and rectus femoris

• Temporalis and masseter

• Triceps and biceps brachii

Using the muscle name as a clue, what is the action of the extensor carpi ulnaris?

• To extend the leg at the knee

• To extend the arm at the shoulder

• To dorsiflex the foot

• To extend the wrist

Consider a muscle that originates on the posterior femur and inserts on the posterior tibia. What is the action of this muscle?

• To extend the knee

• To extend the hip

• To flex the knee

• To flex the hip

What is an action of the rectus femoris muscle?

• Extends the thigh at the hip

• Extends leg at knee

• Adducts the thigh

• Plantar flexes the foot

Where is the deltoid?

• C

• D

• F

• G

Where is the flexor carpi radialis?

• D

• C

• E

• A

What does "rectus" mean?

• A muscle on the anterior side

• A straight muscle

• A muscle with 2 origins

• A muscle on the dorsal side

Myoglobin ______.

• is a protein involved in making ADP.

• breaks down glycogen.

• stores oxygen in muscle fibers.

• is found in the plasma membrane of muslce fibers.

Muscle pairs that oppose each other's movement

• antagonistic muscles

• opposable muscles

• opposite muscles

• rivals