Medial group
MUSCLES OF SHOULDER - MEDIAL GROUP MUSCLES
|
Medial group/font> (View image)
-
Teres major
-
Subscapularis
-
Coraco brachialis
Teres Major
-
This is a flat, long muscle extends obliquely downwards and forwards between the dorsal angle of the scapula and the arm. It lies behind the subscpularis and on the medial face of the long and medial heads of the triceps
-
Origin: The dorsal angle of the scapula and the adjacent part of the posterior border of the scapula (view image)
-
Insertion: By a short flat tendon in common with the latissimus dorsi to the medial tubercle of the humerus
-
Action: To flex the shoulder and adduct the arm (view image)
-
-
Nerve supply: Nerve to teres major
Subscapularis
-
This muscle occupies the subscapsular fossa and presents three fleshy parts
-
-
Insertion: By a flat tendon to the posterior division of the medial tuberosity of the humerus. It is covered by the tendon of origin of coracobrachialis
-
-
-
Nerve supply: Nerves to Subscapularis
Coracobrachialis
-
The muscle lies partly on the medial face of the shoulder joint and the arm
-
-
Insertion:
-
Action: To adduct the arm and flex the shoulder joint
-
Blood supply: Anterior circumflex artery
-
Nerve supply: Musculo-cutaneous nerve
|
Last modified: Thursday, 13 October 2011, 10:10 AM