Muscles - head & neck

Question 1

Levator scapulae

Answer 1

Elevates scapula, abducts and rotates neck

Question 2

Scalenes (anterior, middle, posterior)

Answer 2

Flexes and rotates neck, elevates ribs 1 and 2

Question 3

Sternocleidomastoid

*origin and insertion

Answer 3

Abducts, rotates, and flexes head

Origin: sternum, clavicle
Insertion: mastoid process of temporal bone

Question 4

Omohyoid

Answer 4

Depresses hyoid bone

Question 5

Platysma

Answer 5

Depresses inferior lip, opens jaw

Question 6

Digastric

Answer 6

Elevates hyoid bone and mandible

Question 7

Mylohyoid

Answer 7

Elevates hyoid bone and tongue

Question 8

Frontalis

Answer 8

Raises eyebrows, draws scalp anteriorly

Question 9

Temporalis

*insertion and origin

Answer 9

Elevates (closes) mandible

Origin: temporal fossa
Insertion: coronoid process and ramus of mandible

Question 10

Masseter

*

Answer 10

Elevates (closes) mandible

Origin: zygomatic arch
Insertion: angle and ramus of mandible

Question 11

Orbicularis oculi

Answer 11

Closes eyelid

Question 12

Orbicularis oris

Answer 12

Closes lip

Question 13

Risorius

Answer 13

Abducts corner of mouth (draws edge of mouth lateral)

Question 14

Mentalis

Answer 14

Protrudes lower lip

Question 15

Buccinator

Answer 15

Compresses cheek

Question 16

Zygomaticus (major and minor)

*origin and insertion

Answer 16

Elevates corners of mouth (smiling, laughing)
Origin: zygomatic bone
Insertion: superolateral angle of mouth and muscles of upper lip

Question 17

Depressor labii inferioris

Answer 17

Depresses inferior lip

Question 18

Levator labii superioris

Answer 18

Elevates superior lip, flares nostril