Group 3: Origin On Axial, Insert On Humerus

Question 0

Pectoralis major I?

Answer 0

Lateral lip of bicipital groove

Question 1

Pectoralis major O?

Answer 1

Medial half of clavicle, sternum and cartilage of ribs 1-6

Question 2

Pectoralis major A of all fibers?

Answer 2

Adduct and medically rotate g/h joint. Oi reversed: elevate thorax during inhalation (arms fixed).

Question 3

Pectoralis major A of upper fibers?

Answer 3

Flex and horiz adduct g/h joint

Question 4

Pectoralis major A of lower fibers?

Answer 4

Assists with extension of g/h joint