⭐️💆‍♀️Pectoralis Major

Question 1

Origin

Answer 1

Clavicular head:
Medial half of clavicle
Sternocostal head:
Sternum
Costal cartilages of rib 1 - rib 7

Question 2

Insertion

Answer 2

Lateral lip of bicipital groove of humerus

Question 3

Function

Answer 3

Flex of arm at shoulder joint
ADD of arm at shoulder joint
Med rot of arm at shoulder joint
Extend the flexed arm at shoulder joint
Horizontal ADD of arm at shoulder joint

Question 4

Nerve

Answer 4

Median and lateral pectoral nerves