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…
Description The flexor carpi ulnaris muscle (FCU) is a muscle located in the forearm that helps in the movement of the wrist and hand. It is one of the muscles that are responsible for flexing the wrist and adducting the hand towards the ulnar side of the forearm (the side where the little finger is…
What is Teres Minor Muscle? Teres minor is a posterior muscle of the shoulder that enlarges between the scapula & the head of the humeral bone. It is one of the 4 muscles of the rotator cuff, along with the supraspinatus, infraspinatus, & subscapularis. Rotator cuff muscles act combine to control the movements of the humerus head & work as stabilizing it within the glenoid cavity…
What is Teres Major Muscle? The teres major is a broad muscle of the shoulder joint. It starts from the inferior aspect of the scapula to the proximal part of the humeral shaft. Unlike the teres minor, the teres major muscle will not attach to the glenohumeral joint capsule. Thus it is not considered as part of the rotator cuff muscles….
What is Pectoralis Minor Muscle? The pectoralis minor muscle is triangular in shape & is located under the pectoralis major, & both formed the anterior wall of the axilla. The pectoralis minor muscle is one of the most surfaced muscles on the anterior aspect of the chest or thoracic wall, situated deeply only to the pectoralis major muscle. It is…
What is Infraspinatus Muscle? The infraspinatus is a broad triangular muscle that takes the majority of the dorsal surface of the scapula. It arises mostly from the infraspinous fossa of the scapula,& joins it to the proximal humerus. The infraspinatus is one of the 4 rotator cuff muscles, alongside subscapularis, teres minor & supraspinatus muscles. As a portion of the rotator…
What is Subscapularis Muscle ? The subscapularis is a triangular shoulder muscle situated in the subscapular fossa of the scapula. Attaching between the scapula & the proximal humerus, it is one of the 4 muscles of the rotator cuff, along with supraspinatus, infraspinatus, & teres minor. Rotator cuff muscles act to combine work for stabilization & steer the humeral head within the glenoid cavity during…
What is Supraspinatus Muscle? Supraspinatus is 1 of the rotator cuff muscles, along with infraspinatus, teres minor & subscapularis muscles. Supraspinatus is situated deeply to the trapezius muscle in the posterior scapular region, extending from the supraspinous fossa of the scapula to the proximal humerus. Together with the other rotator cuff muscles, supraspinatus work as a stabilization of the glenohumeral (shoulder) joint during the movements of the upper extremity. Additionally, it…
What is the shoulder to neck muscles? The shoulder to neck muscles are the skeletal muscles. These muscles are interlinked muscles. They play a major role in performing a wide variety of movements. These muscles have their own importance while they work as a stabilizer of the neck and shoulder structures and also play a…
