The Axilla & Pectoral Region Muscle (O & I)

Question 1

Pectoralis Minor (O & I)

Answer 1

O: 3rd-5th ribs, near coastal cartilages

I: coracoid process of scapula

Question 2

Subclavius (O & I)

Answer 2

O: junction of 1st rib and its costal cartilage

I: inferior surface of middle 1/3 of clavicle

Question 3

Serratus Anterior (O & I)

Answer 3

O: external surface of lateral parts of ribs 1-9

I: anterior surface of medial border of scapula

Question 4

Pectoralis Major (O&I)

Answer 4

O:

1. Ant. surface of medial 1/2 of clavicle
2. ant. surface of sternum and superior 6 costal cartilage

I: lateral lip of intertubercular sulcus (bicipital groove)