The biceps brachii muscle is denoted by the letter "B" in most anatomical illustrations. This muscle is located in the upper arm and is responsible for flexing the elbow.
The biceps brachii is a two-headed muscle, meaning it has two points of origin. The muscle arises from the shoulder blade and the upper arm bone. It inserts into the forearm bones. The biceps brachii is innervated by the musculocutaneous nerve.This muscle is located in the upper arm and is responsible for flexing the elbow joint. Additionally, the biceps brachii muscle assists in supinating the forearm (turning the palm of the hand upward).
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