The prime mover of the elbow flexion is the brachialis muscle on the anterior side of the humerus. The prime mover of a muscle is the one that applies the most amount of force on that particular joint. The biceps brachii... More »

Some examples of a prime mover muscle are quadriceps moving the hamstrings in the leg and the biceps moving the triceps in the arm. Prime muscles are also known as synergists, and their role is to relax the antagonist, w... More »

www.reference.com Science Human Anatomy Muscles

Located on the posterior or back of the upper arm, the triceps brachii extends the forearm at the elbow and the humerus at the shoulder and is the prime mover for arm extension. The forearm can flex and extend at the elb... More »

Located on the posterior or back of the upper arm, the triceps brachii extends the forearm at the elbow and the humerus at the shoulder and is the prime mover for arm extension. The forearm can flex and extend at the elb... More »

According to Sportsinjuryclinic.net, several muscles in the elbow joint are directly involved in the flexion and extension of the elbow. Two of the largest are the biceps brachii and the triceps brachii. More »

www.reference.com Science Human Anatomy Muscles

According to About.com, the function of the rectus femoris muscle is to enable knee extension and hip flexion. The rectus femoris, along with five other hip flexors, is responsible for flexion that draws the legs towards... More »

Deltoid muscles, situated in the shoulders, are responsible for the majority of arm movements, including arm abduction, arm flexion and medial rotation, and arm extension and lateral rotation. These movements involve the... More »