Supination consists of rotating the forearm so that the palm faces anteriorly and the thumb is positioned laterally
The muscles that attach to the medial epicondyle of the humerus, such as the flexor pronator group, control movements of the wrist, fingers, and forearm. They are involved in flexion of the wrist, fingers, and forearm, as well as pronation of the forearm.
In anatomical position the palms are facing up, making the ulna the medial bone of the forearm. The ulna is on the pinky side, and radius is on the thumb side.
The main antagonist of medial rotation of the humerus is the infraspinatus muscle, one of the rotator cuff muscles. It works in opposition to the muscles that perform medial rotation, such as the subscapularis.
The bone you are referring to is the ulna. It is one of the two bones in the forearm, located on the medial (little finger side) of the arm, next to the radius. The ulna plays a key role in stabilizing the arm and forming the elbow joint.
In Western anatomical position, the distal ulna is located on the medial side of the forearm, next to the pinky finger and opposite to the thumb side. It forms part of the wrist joint, articulating with the carpals and contributing to wrist movements.
The wrist is distal to the forearm. The wrist is neither medical nor lateral to the forearm.
The ulna is not a midline structure. It is, however, the most medial bone of the forearm.
radius (lateral) Ulna (medial)
The muscles that attach to the medial epicondyle of the humerus, such as the flexor pronator group, control movements of the wrist, fingers, and forearm. They are involved in flexion of the wrist, fingers, and forearm, as well as pronation of the forearm.
The medial epicondyle is the most medial structure of the humerus. The trochlea is the second.
The antebrachium is the forearm. It contains the radius on the lateral side and the ulna on the medial side.
In anatomical position the palms are facing up, making the ulna the medial bone of the forearm. The ulna is on the pinky side, and radius is on the thumb side.
Inner? Do you mean medial? It is ulna.
The main antagonist of medial rotation of the humerus is the infraspinatus muscle, one of the rotator cuff muscles. It works in opposition to the muscles that perform medial rotation, such as the subscapularis.
The origin attachments are on, or near, the medial epicondyle of the humerus.
Ulnar and Radial
In anatomical position the palms are facing up, making the ulna the medial bone of the forearm. The ulna is on the pinky side, and radius is on the thumb side.