Lab Practical III

Question 1

Masseter

Answer 1

Face- Elevates mandible

Question 2

Sternocleidomastoid

Answer 2

Neck- Pulls head to one side, flexes neck, or elevates sternum

Question 3

Trapezius

Answer 3

Rotates Scalpula

Question 4

Pectoralis Major

Answer 4

Flexes, Abducts, and rotates humerus, or adducts arm

Question 5

Lattissimus Dorsi

Answer 5

Extends and adducts the arm and rotates humerus inwardly, or pulls the shoulder downward and back

Question 6

Deltoid

Answer 6

Abducts upper arm

Question 7

Biceps Brachii (long and short head)

Answer 7

Flexes upper arm

Question 8

Triceps Brachii (long, lateral, medial)

Answer 8

Extends arm at the elbow

Question 9

External Obliques

Answer 9

Tenses abdominal wall and compresses abdominal contents

Question 10

Internal Obliques

Answer 10

Tenses abdominal wall and compresses abdominal contents

Question 11

Rectus Abdominis

Answer 11

Tenses abdominal wall compresses abdominal contents and flexes vertebral column

Question 12

Gluteus Maximus

Answer 12

Extends leg at the hip

Question 13

Gluteus Medius

Answer 13

Abducts thigh

Question 14

Adductor muscles

Answer 14

Adducts thigh