The supinator muscle is a muscle in the forearm that is not directly responsible for flexion or extension of the arm. Its primary function is to rotate the forearm in a movement called supination, where the palm faces up.
The biceps brachii muscle is primarily responsible for elbow flexion. It crosses both the shoulder and elbow joints and is a strong supinator of the forearm.
shoulder
No, the tibialis anterior and posterior are responsible for dorsiflexion, not plantar flexion. Plantar flexion is primarily controlled by the muscles of the posterior compartment of the leg, such as the gastrocnemius and soleus.
yes it is, when holding a weight your arm is extended/ extension, when performing a bicep curl your arm becomes contracted which mean flexion. hope that this helped!! :)
Well the limb will be Extended and the muscle will be elongated or in "extention", as opposed to a flexed or shortented muscle.
If a prime mover produces flexion, its antagonist will be the muscle responsible for producing extension at the same joint. They work in opposition to each other to create movement and stabilize the joint.
The popliteus
Elbow flexion primarily involves the hinge joint formed by the humerus (upper arm bone) and the ulna (one of the two bones in the forearm). The radius, the other forearm bone, also plays a role but to a lesser extent. The main muscles responsible for elbow flexion are the biceps brachii and brachialis.
Prime mover is the bicep and the antagonist is the tricep.
The anterior forearm muscle does not actually exist. Instead, there are a total of eight different muscles with the anterior compartment of the forearm. Their jobs are specifically related to flexion and pronation, or inward rotation of the hand.
It is Flexion and Extension