Question

Which muscles extend or straighten the arms at the elbows?

A. quadriceps (quads)
B. triceps brachii
C. rectus abdominus (abs)
D. latissimus dorsi (lats)

Answer 1

B.

Quads in the legs, abs on the stomach, lats on the middle of the chest

Answer 2

B. triceps brachii

Step-by-step explanation:

the triceps brachii is the muscle in the back of the upper arm that extends the arm and fixes the elbow during fine movements