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Describe the action of your muscles when you bend your arm and then straighten it again?
The muscles in your arm never expand; so when you bend your arm, your biceps contract as your triceps return to their regular form. When you extend your arm, you triceps contract as your biceps return to their regular form.
How do muscles in your arm work together?
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.
When you move the muscles of your lower arm which muscles of your body contract and relax?
biceps and triceps respectively
When the arm is streched the biceps muscles become while the triceps muscles become?
The triceps be retact and contract
Muscle that has an action opposite to that of another muscle?
The biceps and triceps. When the biceps contract, the triceps relax. If you can flex it, there's an opposite action happening somewhere.
How do muscles bring about movement in an organism?
Contraction of the biceps and the relaxation of the triceps bend the arm .In straightening the arm the triceps contract and the biceps relax
When you perform flexion on your arm the biceps muscle contracts What happens to the triceps muscle on the posterior of the arm as you do this action?
The Triceps extend (Stretch out) as the biceps contract.
What contracts when the biceps relax?
The triceps contract when the biceps relax.And, vice versa. The triceps relax when the biceps contract.
What are antagonist for the biceps?
The Triceps brachii
When you bend your elbows and clench your fists these muscles bulge?
When you bend your elbows and clench your fists, the primary muscles that bulge are the biceps brachii in the upper arm and the brachialis underneath it. The biceps contract to flex the elbow and bring the forearm toward the shoulder, while the brachialis assists in this movement. Additionally, the forearm muscles, such as the flexor muscles, engage to clench the fist, contributing to the overall bulge of muscle. This coordinated action highlights the strength and function of the muscles involved in arm and hand movements.
Why is biceps femoris is the antagonist muscle in knee extension?
The biceps femoris is one of the hamstring muscles located at the back of the thigh, and its primary function is to flex the knee and extend the hip. During knee extension, the quadriceps muscles contract to straighten the leg, while the biceps femoris must relax to allow this movement to occur. Hence, it acts as an antagonist to the quadriceps during knee extension, opposing their action and facilitating smooth movement.
What happens to muscles when you straighten your arm?
There are many arm muscles. The triceps (on the back of your upper-arm) contract when you straighten your arm, and the biceps (the front of the upper-arm) relaxes.
