Which of these muscles is found on the posterior surface of the leg? a. Gastrocnemius b. Extensor digitorum longus c. Extensor carpi ulnaris d. Biceps femoris Which of the following is (are) true...

Which of these muscles is found on the posterior surface of the leg?

a. Gastrocnemius

b. Extensor digitorum longus

c. Extensor carpi ulnaris

d. Biceps femoris

Which of the following is (are) true concerning the pectoralis major?

a. It raises the clavicle.

b. It adducts the humerus.

c. It abducts the arm.

d. It flexes the humerus.