Biceps Brachii flexes the forearm and the Triceps Brachii extends the forearm.
flex
The biceps and triceps are muscles. They flex and extend the forearm, respectively, so they are considered antagonists.
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it is easier to flex the elbow when your forearm is supinated because it is putting less tension on the muscles and ligaments as supposed to in pronated.
Triceps brachii
Function: flexion and radial deviation of the wrist, along with other muscles which flex the wrist and radially deviate the wrist, weak pronation of the forearm along with other muscles which pronate the forearm and weak flexion of the elbow along with other muscles which flex the elbow
Muscles can contract and shorten
extend the forearm
There are about 20 muscles in a forearm, consisting of flexors and extensors. Flexors are responsible for flexing the forearm, wrist, and fingers.
The triceps muscles extend (straighten) the arm, while the biceps muscles flex (bend) it at the elbow joint.
Neither. The biceps brachii flex the elbow and supinates, or turns, the upper part of your arm. They are commonly referred to as just the biceps and are seen with flexing your arm with weights. To do this, you need to do a bicep curl, which is just bringing the weight to your shoulder, having the palm of your hand face your shoulder, pointing back. It is the muscles that lies on the inner part of the forearm and is usually the stronger than most other muscles in the arms. Hope this helps!
When you flex your arm your biceps contract, and your triceps extend. And when you unflex your arm the triceps contract and you biceps extend. The muscles work together to allow you to move your body.
flexing is tightening of your muscles, and joints bend to let you extend your arm from the elbow and shoulder