The yunteris muscle positioned just below the thumb
FLEXOR DIGITORUM... Anatomy & Physiology
The palm is up in the anatomical position. This is also when the forearm is supinated.
The extensor muscles of the wrist and digits are responsible for extending the wrist joint and fingers. These muscles work in coordination to help move the hand and fingers upward and away from the palm. Strengthening these muscles can improve wrist and finger mobility and function.
Supination is the term for turning the palm upward.
supination..
platysma
Supination.
Yes, and there are muscles throughout your entire body. If there were no muscles in your palm, you wouldn't be able to crush anything in it, and the middle of your hand, theoretically, would be squishy and useless.
What muscle expand the chest cavity by rotating the ribs upward, contributing to inspiration
The upward rotation of scapula muscles helps to stabilize the shoulder joint and allows for smooth movement of the arm.
In both cats and humans, the biceps brachii and the supinator muscles are responsible for rotating the forelimb. The biceps brachii primarily facilitates supination, turning the palm upward, while the supinator muscle assists in this action. Together, these muscles enable a range of rotational movements necessary for various activities.
The term is supinate.