anterior axio-appendicular muscles

Question 0

pectoralis major insertion

Answer 0

lateral lip of intertubercular sulcus of humerus

Question 1

Pectoralis major origin

Answer 1

Clavicular head: anterior surface of medial half of clavicle
sternocostal head: anterior surface of sternum, superior 6 costal cartilages, aponerosis of external oblique

Question 2

innervation of pectoralis major

Answer 2

lateral and medial pectoral nerves, clavicular head (C5,C6)

sternocostal head C7,C8,T1

Question 3

action of Pectorais Major

Answer 3

adducts and medially rotates shoulder joint
draw scapula anteriorly and inferiorly

Alone: clavicular head flexes shoulder joint and sternocostal head extends it from the flexed position

Question 4

pectoralis minor origin

Answer 4

3rd-5th ribs near their costal cartilages

Question 5

insertion of pectoralis minor

Answer 5

medial border and superior surface of coracoid process

Question 6

Innervation of pectoralis minor

Answer 6

medial pectoral nerve (c8 T1)

Question 7

action of pectoralis minor

Answer 7

stabilizes scapula by drawing inferiorly and anteriorly against the wall

Question 8

subclavius origin

Answer 8

junction of first rib near their costal cartilage

Question 9

insertion of subclavius

Answer 9

inferior surface middle third clavicle

Question 10

innervation of subclavius

Answer 10

subclavian nerve (C5 C6)

Question 11

action of subclavius

Answer 11

anchors and depresses clavicle

Question 12

serratus anterior origin

Answer 12

external surface of lateral parts of 1st-8th rib

Question 13

insertion of serratus anterior

Answer 13

anterior surface of medial border of scapula

Question 14

serratus anterior innervation

Answer 14

long thoracic nerve (C5 C6 C7)

Question 15

action of serratus anterior

Answer 15

protracts scapula and rotates scapula