The triceps brachii is muscle group ... The medial and lateral heads of the muscle originate at the posterior of the humerus. The long head originates at the lower edge of the scapula.

The triceps brachii (“three-headed ... is straightening your elbow. Each head has a different origin point near the top of your upper arm: The lateral and medial heads both originate on the ...

lateral, and long. The triceps brachii is a main extensor of the elbow. All three heads extend the elbow, but only the long head of the triceps helps with shoulder stability, because it attaches ...

scientifically known as the triceps brachii, sits along the backside of your upper arm. While it's one muscle, there are three sections: the long head, lateral head, and medial head. The three ...

One of the most important arm muscles is the triceps brachii (the triceps, for short). You use your triceps to extend your arm. It opposes the biceps muscle, which is used to flex the arm.

The biceps and triceps are two major muscle groups ... made up of three distinct heads — a medial (middle), lateral (side), and long head. The long head originates from the rear of the shoulder ...