Muscles Of The Chest, Shoulder & Upper Limb

The Subscapularis muscle originates on the anterior surface of the scapula and inserts on the lesser tubercle of the humerus. This muscle plays an important role in the movement and stability of the shoulder joint. It is responsible for internal rotation of the arm, as well as adduction and stabilization of the shoulder. The Subscapularis muscle is one of the four muscles that make up the rotator cuff, which is crucial for the proper functioning of the shoulder and arm movements.

The muscle that originates on the lateral border of the scapula and inserts on the greater tubercle of the humerus is the teres minor. This muscle is located in the shoulder region and is responsible for the rotation and stabilization of the arm. It works together with other muscles to allow for movements such as external rotation of the shoulder joint.

The muscle that originates on the sternal ends of the upper ribs and inserts on the coracoid process of the scapula is the pectoralis minor.

The muscle that originates on the anterior shaft of the humerus and inserts on the coronoid process of the ulna is called the Brachialis.

The muscle that originates on the outer surfaces of the upper ribs and inserts on the ventral surface of the scapula is the Serratus Anterior. This muscle is responsible for protracting and stabilizing the scapula, allowing for movements such as reaching forward and pushing objects away.

The muscle that originates on the distal lateral end of the humerus and inserts on the lateral surface of the radius above the styloid process is the brachioradialis.

The muscle that originates on the medial epicondyle of the humerus and inserts on the base of the second and third metacarpals is the Flexor Carpi Radialis. This muscle is responsible for flexing the wrist and abducting the hand.

The muscle that originates on the coracoid process of the scapula and inserts on the shaft of the humerus is called the coracobrachialis.

The Teres Major muscle originates on the lateral border of the scapula and inserts on the intertubercular groove of the humerus. This muscle is responsible for medial rotation, adduction, and extension of the arm at the shoulder joint. It works in conjunction with the Teres Minor muscle to stabilize and move the shoulder joint.

The muscle that originates on the spines of the upper thoracic vertebrae and inserts on the medial border of the scapula is called the Rhomboid major.

The correct answer is Pronatorteres. The Pronatorteres muscle originates on the medial epicondyle of the humerus and the coronoid process of the ulna. It then inserts on the lateral surface of the radius. This muscle is responsible for pronating the forearm, which means rotating it in a way that the palm faces downwards.

The muscle that originates on the medial epicondyle of the humerus and inserts on the fascia of the palm is called Palmaris longus.