The term BICEPS, E.G. can be solved by two crossword solutions: MUSCLE (6 letters) and FLEXOR (6 letters). Biceps are a type of MUSCLE located in the upper arm that is responsible for flexing the elbow joint. The biceps brachii is the most common type of biceps MUSCLE and is composed of two heads, the short head and the long head. The biceps brachii is connected to the shoulder and elbow joints, allowing it to flex the elbow joint and rotate the forearm. The biceps also helps to stabilize the shoulder joint. The flexor muscles are located in the forearm and are responsible for bending the wrist and fingers. They are composed of several different muscles, including the flexor carpi radialis, flexor carpi ulnaris, and flexor digitorum superficialis.