muscles of head and neck

Question 1

occipitalis function

Answer 1

tenses + retracts scalp

Question 2

occipitalis origin and insertion

Answer 2

Origin: superior nuchal line

Insertion: epicranial aponeurosis

Question 3

frontalis function

Answer 3

raises brows

Question 4

frontalis origin and insertion

Answer 4

Origin: epicranial aponeurosis

Insertion: superior margin of the eye orbit

Question 5

Orbicularis Oculi function

Answer 5

closes eyes

Question 6

Orbicularis Oculi origin and insertion

Answer 6

origin: medial wall of eye

insertion: encircles orbit and inserts in tissue of the eyelid

Question 7

Orbicularis Oris function

Answer 7

purses lips

Question 8

Orbicularis Oris origin and insertion

Answer 8

Origin: the modiolus

Insertion: the skin surrounding the mouth

Question 9

muscles of mastification

Answer 9

masseter, temporalis

Question 10

masseter function

Answer 10

closes the jaw

Question 11

masseter origin and insertion

Answer 11

origin: zygomatic arch

insertion: lateral surface of mandibular ramus

Question 12

temporalis function

Answer 12

elevates the mandible

Question 13

temporalis origin and insertion

Answer 13

origin: temporal lines of skull

insertion: the coronoid process of mandible

Question 14

platysma function

Answer 14

tenses skin of neck

Question 15

sternocleidomastoid function

Answer 15

flexes the neck

Question 16

sternocleidomastoid origin and insertion

Answer 16

origin: clavicular head attaches to sternal end of clavicle

insertion: mastoid region of skull and lateral portion of superior nuchal line