Muscles of the Neck and Head Flashcards Preview

Anatomy Lab > Muscles of the Neck and Head > Flashcards

Flashcards in Muscles of the Neck and Head Deck (24):
1

Origin, Insertion, and Action for the Scalenes

Origin: Transverse process of cervical vertebrae
Insertion: RIbs 1 and 2
Action: Flexes and rotates neck, elevates ribs 1 and 2

2

Origin, Insertion, and Action for the Sternocleidomastoid

Origin: Sternum, clavicle
Insertion: Mastoid process of temporal bone
Action: Abducts, rotates, and flexes head

3

Origin, Insertion, and Action for the Temporalis

Origin: Temporal fossa
Insertion: Coronoid process and ramus of mandible
Action: Closes mandible

4

Origin, Insertion, and Action for the Massester

Origin: Zygomatic arch
Insertion: Angle and ramus of mandible
Action: Closes mandible

5

Origin, Insertion, and Action for the Orbicularis oculi

Origin: Frontal and maxilla on medial margin of orbit
Insertion: Skin of eyelid
Action: Closes eyelid

6

Origin, Insertion, and Action for the Orbicularis oris

Origin: Fascia of facial muscles near mouth
Insertion: Skin of lips
Action: Closes lips

7

Name an action for the Levator scapulae

Elevates scapula, abducts and rotates neck

8

Name an action for the Sternohyoid

Depresses hyoid

9

Name an action for the Sternothyroid

Depresses thyroid cartilage

10

Name an action for the Omohyoid

Depresses hyoid

11

Name an action for the Platysma

Depresses lower lip, opens jaw

12

Name an action for the Digastric

Elevates, protracts, and retracts hyoid, opens mandible

13

Name an action for the Mylohyoid

Elevates hyoid and tongue

14

Name an action for the Frontalis

Raises eyebrows, draws scalp anteriorly

15

Name an action for the Occipitalis

Draws scalp posteriorly

16

Name an action for the Pterygoids

Medial gliding of mandible for chewing

17

Name an action for the Corrugator supercilii

Adducts eyebrows (pulls them medially)

18

Name an action for the Risorius

Abducts corner of mouth (draws edge of mouth laterally)

19

Name an action for the Mentalis

Protrudes lower lip

20

Name an action for the Buccinator

Compresses cheek

21

Name an action for the Zygomaticus major and minor

Elevates corners of mouth

22

Name an action for the Depressor labii inferioris

Depresses lower lip

23

Name an action for the Levator labii superioris

Elevates upper lip, flares nostril

24

Name the 4 major muscles of mastication

1. Temporalis
2. Masseter
3. Medial pterygoids
4. Lateral pterygoids