Origins And Insertions

Question 1

Trapezius

Answer 1

Origin: superior nuchal line, ligamentum nuchae, external occipital protuberance and the spinous process of c seven to t twelve
Insertions;
Upper fibers _ posterior surface lateral third of the clavicle and acromion
Middle fibers - acromion J spine of the scapula
Lower fibers- medial 1/3 of the spire of the scapula

Question 2

Pec Major

Answer 2

Origins:
. Sternal head: sternum t costal cartilage of the first six ribs
Clavicular head; medial 1/2 of the clavicle

Insertions - lateral lip of the inter tubercular groove

Question 3

Pec minor

Answer 3

Origin
Anterior aspect of ribs 3-5
Insertion
Coracoid process

Question 4

Deltoid

Answer 4

Origin: lateral third of the anterior surface of the clavicle, acromion and spine of the scapula
Insertion - deltoid tuberosity of the humerus