Pectoral Girdle OIAs

Question 1

Trapezius
A

Answer 1

Action: Elevates, depresses, rotates, and retracts scapula

Question 2

Rhomboid Major

Answer 2

Origin: Spinous process of upper thoracic vertebrae
Insertion: vertebral border of scapula (below spine)
Action: rotates and retracts scapula

Question 3

Rhomboid Minor OIA

Answer 3

Origin: spinous process of lower cervical and upper thoracic vertebrae
Insertion: vertebral border of scapula (at base of spine)
Action: rotates and retracts scapula

Question 4

levator Scapulae

Answer 4

Origin: Transverse process of cervical vertebrae
Insertion: vertebral border of scapula
Action: elevates scapula

Question 5

Pectoralis Minor

Answer 5

Origin: Anterior surface of middle ribs
Insertion: coracoid process of scapula
Action: depresses, protracts, and rotates scapula

Question 6

serratus anterior

Answer 6

Origin: outer surface of ribs 1-9
Insertion: Entire length of vertebral border of scapula
Action: protracts and rotates scapula