| Term | Definition |
|
Acromiotrapezius |
Origin - Spines of cervical vertebrae. Insertion - Spine of scapula. Action - Draws scapula dorsally. |
|
Spinotrapezius |
Origin - Spines of thoracic vertebrae. Insertion - Fasica of scapula muscles. Action - Draws scapula dorsally. |
|
Clavotrapezius |
Origin - Lambdoidal crest of skull. Insertion - Clavicle. Action - Draws scapula crainiodorsally. |
|
Clavobrachialis |
Origin - Clavicle. Insertion - Ulna beneath semilunar notch. Action - Flexes forearm. |
|
Levator scapulae ventralis |
Origin - Atlas and occipital bone. Insertion - Metacromion process. Action - Draws scapula crainally. |
|
Acromiodeltoid |
Origin - Acromion of scapula. Insertion - Outer surface of spinodeltoid. Action - Flexes and rotates humerus. |
|
Spinodeltoid |
Origin - Spine of scapula. Insertion - Deltoid region of humerus. Action - Flexes and rotates humerus |
|
Latissimus dorsi |
Origin - Thoracic and lumbar vertebrae. Insertion - Shaft of humerus. Action - Pulls arm caudodorsally. |