Lab Exam 1

Question 1

Sternocleidomastoid (Origin)

Answer 1

Clavicle and Manubrium

Question 2

Sternocleidomastoid (Insertion)

Answer 2

Mastoid process of temporal bone

Question 3

Sternocleidomastoid (Action)

Answer 3

Flexes, laterally flexes, and rotates head to opposite side

Question 4

Trapezius (Origin)

Answer 4

Occipital protuberance, C7-T12 spinous process

Question 5

Trapezius (Insertion)

Answer 5

Clavicle acromion process and spine of scapula

Question 6

Trapezius (Action)

Answer 6

Upper: Extends head or elevates shoulder girdle
Middle: Retracts and stabilizes scapula
Lower: Depresses scapula and shoulder girlde

Question 7

Levator Scapulae (Origin)

Answer 7

C1-C4 spinous processes

Question 8

Levator Scapulae (Insertion)

Answer 8

Superior angle of scapula

Question 9

Levator Scapulae (Action)

Answer 9

Elevates Scapula

Question 10

Rhomboid Minor (Origin)

Answer 10

C7-T1 Spinous Processes

Question 11

Rhomboid Minor (Insertion)

Answer 11

Medial Border of scapula

Question 12

Rhomboid Minor (Action)

Answer 12

Scapular retraction

Question 13

Rhomboid Major (Origin)

Answer 13

T2-T5 Spinous processes

Question 14

Rhomboid Major (Insertion)

Answer 14

Medial Border of scapula

Question 15

Rhomboid Major (Action)

Answer 15

Scapular retraction

Question 16

Pectoralis Minor (Origin)

Answer 16

Ribs 3-5

Question 17

Pectoralis Minor (Insertion)

Answer 17

Coracoid process of scapula

Question 18

Pectoralis Minor (Action)

Answer 18

Depresses scapula; elevates 3-5 ribs

Question 19

Serratus Anterior (Origin)

Answer 19

Ribs 1-8

Question 20

Serratus Anterior (Insertion)

Answer 20

Inferior angle and medial border of scapula

Question 21

Serratus Anterior (Action)

Answer 21

Scapular Protraction