Gross Anatomy

Question 1

Frontalis

Answer 1

Function-Raises eyebrows
Origin- cranial aponeurosis
Insertion- skin of eyebrows

Question 2

Orbicularis oculi

Answer 2

Function- blinks and closes eyes
Origin- frontal
Insertion- tissue around eyes

Question 3

Orbicularis oris

Answer 3

Function-closes and protrudes lips
Origin- maxilla
Insertion- skin around mouth

Question 4

Sternocleidomastoid

Answer 4

Function- flexes neck rotates head
Origin- sternum
Insertion- mastoid process

Question 5

Pectoralis major

Answer 5

Function- medially rotates and adducts arm
Origin- sternum
Insertion- humerus

Question 6

External obliques

Answer 6

Function- rotate and flex vertebral column
Origin- ribs 5-12
Insertion- iliac crest

Question 7

Rectus abdominis

Answer 7

Function- flexes vertebral column
Origin- public crest
Insertion- xiphoid process

Question 8

Latissimus dorsi

Answer 8

Function- adduction extension and medial rotation of arm
Origin- T7-T12
Insertion- humerus

Question 9

Trapezius

Answer 9

Function- elevation, upward rotation of scapula, extends neck
Origin- occipital bone
Insertion- scapula

Question 10

Levator scapulae

Answer 10

Function- elevates the scapula, shrugging Shoulders
Origin- C1-C4
Insertion- scapula

Question 11

Deltoideus

Answer 11

Function- abducts arm
Origin- scapula
Insertion- humerus

Question 12

Biceps brachii

Answer 12

Function- flexes elbow and supinate a forearm
Origin- scapula
Insertion- radius

Question 13

Triceps brachii

Answer 13

Function- extends elbow
Origin- humerus
Insertion- ulna

Question 14

Gastronemius

Answer 14

Function- plantar flexes foot and knee
Origin- femur
Insertion- calcaneus

Question 15

Gluteus maximus

Answer 15

Function- extends thigh at hip and lateral thigh rotation
Origin- sacrum
Insertion- femur