muscles that act on the pectoral girdle

Question 1

what is the origin of the serratus anterior

Answer 1

upper ribs (lat surface)

Question 2

what is the insertion of the serratus anterior

Answer 2

medial border of scapula (deep side)

Question 3

action of the serratus anterior

Answer 3

pulls scapula forward, superiorly rotates scapula

Question 4

origin or pectoralis minor

Answer 4

sternal ends of upper ribs

Question 5

insertion of pec minor

Answer 5

coracoid process of scapula

Question 6

action of pec minor

Answer 6

pulls scapula forward and down

Question 7

origin of rhomboid major

Answer 7

spinous process of T2-T5

Question 8

insertion of rhomboid major

Answer 8

medial border of scapula

Question 9

action of rhomboid major

Answer 9

elevates and adducts scapula, inferiorly rotates scapula

Question 10

origin of rhomboid minor

Answer 10

spinous process of C7-T1

Question 11

insertion of rhomboid minor

Answer 11

medial border of scapula

Question 12

action of rhomboid minor

Answer 12

elevates and adducts scapula, inferiorly rotates scapula

Question 13

origin of trapezius

Answer 13

superior nuchal line, ligamentum nuchae, spinous process of C7-T12

Question 14

insertion of trapezius

Answer 14

clavicle, spine and acromion of scapula

Question 15

action of trapezius

Answer 15

elevates and adducts scapula, draws head back