Introduction The clavicle (Latin a small legend) is a long bone. It keeps the shoulder so that the arm component can turn out from the chest.The clavicle moves the important weight of the limb to the sternum. The bone includes a cylindrical part named the shaft, and two ends, lateral and medial. Side determination The…
Introduction The ulna is one of the 2 long forearm bones that, in junction with the radius, make up the antebrachium. the bone crosses from the elbow to the wrist on the medial side of the forearm when in anatomical position. In comparison to the radius, the ulna is determined to be larger and longer….
Description The Flexor Carpi Radialis muscle is a long, narrow muscle located in the forearm, on the thumb side. It originates from the medial epicondyle of the humerus and the adjoining ridge of the ulna bone and then travels down the forearm to insert into the base of the second metacarpal bone of the hand….
Description The pronator quadratus muscle is a deep muscle located in the forearm, on the anterior aspect of the distal forearm bones. It is a square-shaped muscle that originates from the anterior surface of the distal quarter of the ulna bone (the medial bone of the forearm) and inserts onto the anterior surface of the…
Introduction The humerus bone, also known as the upper arm bone, is one of the long bones of the upper limb in humans. It connects the shoulder blade to the elbow and is responsible for the movement of the arm. The humerus bone is an essential part of the human skeletal system, and any damage…
Description The flexor digitorum superficialis (FDS) is a muscle located in the forearm that plays an important role in flexing the fingers. It originates from the medial epicondyle of the humerus (upper arm bone) and the coronoid process of the ulna (one of the forearm bones) and runs down the forearm, attaching to the middle…
The arytenoid muscles are a group of small muscles that are located in the larynx, or voice box, which is part of the respiratory system. These muscles attach to the arytenoid cartilages, which are paired cartilages that sit on top of the cricoid cartilage in the larynx. The arytenoid muscles help to control the movements…
Description The brachioradialis muscle is a muscle located in the forearm that acts as a flexor of the elbow joint. It is named for its origin at the brachium, or arm, and its insertion at the radius bone of the forearm. The brachioradialis muscle is a relatively small muscle compared to other muscles in the…
Description The pronator teres muscle is a muscle located in the forearm that plays a role in pronation (inward rotation) of the forearm. It is one of two pronator muscles in the forearm, the other being the pronator quadratus muscle. Structure of pronator teres muscle Origin of pronator teres muscle Insertion of pronator teres muscle…
Description The coracobrachialis muscle is a small muscle located in the upper medial part of the arm. It originates from the coracoid process of the scapula (shoulder blade) and inserts into the middle of the humerus bone (upper arm bone). Structure of coracobrachialis muscle Origin of the coracobrachialis muscle Insertion coracobrachialis muscle Nerve supply of…
