Week 2

Question 1

This muscle covers the top of the skull; draws scalp posteriorly and anteriorly causing eyebrows to raise and wrinkles to form in the forehead
-2; left and right side of the skull

Answer 1

occipitofrontalis

Question 2

this muscle arising in the temporal cavity and inserting in the mandible

• a muscle of mastication and is the STRONGEST CHEWING MUSCLE; closes the mandible and assists in side to side movement of the mandible
• 2 left and right side of the skull

Answer 2

temporalis

Question 3

• this muscle arising from the zygomatic arch and inserting in the mandible
• muscle of mastication ; closes the mandible
• 2 left and right of face

Answer 3

masseter

Question 4

• this sphincter muscle surrounds the eye socket
• closes the eyelid and compresses the lacrimal sac
• 2 left and right

Answer 4

orbicularis oculi

Question 5

• a pyramid shaped muscle of facial expression. This muscle lies beneath the frontal and orbiculares oculi.
• also knows as the FROWNING MUSCLE
• draws eyebrows inferiorly and medially, as in frowning
• 2 left and right

Answer 5

corrugator

Question 6

• this muscle of facial expression that runs from the inside of the eye socket to the upper tarsal plate of the eyelid
• raises the upper eyelid
• 2 right and left face

Answer 6

levator palpebrae superioris

Question 7

• muscle covers the bridge of the nose
• draws the skin of the forehead inferiorly causing transverse and vertical wrinkles in the forehead
• 2 right and left face

Answer 7

procerus

Question 8

• a flat band of muscles in the upper and lower red lips and integumentary lips
• closes the lips; compresses lips against the teeth; shapes lips during speech
• 1 muscle of face

Answer 8

orbicularis oris

Question 9

• a muscle of facial expression
• raises the upper lip and dilates nostrils
• 2 left and right face

Answer 9

levator labii superioris alaeque nasi

Question 10

• a muscle of facial expression
• elevates and extends the upper lip
• 2 left and right of face

Answer 10

levator labii superioris

Question 11

• a small muscle at the angle of the mouth

- elevates the angle of the lip

Answer 11

levator anguli oris

Question 12

• a muscle of the face
• draws upper lip
• • superiorly and laterally
• 2 left and right of face

Answer 12

zygomatic minor

Question 13

• a muscle of the face
• draws upper lip
• • posteriorly and superiorly and laterally
• 2 left and right of face

Answer 13

zygomatic major

Question 14

• the principle muscle of the cheek; makes up part of the angles iris eminence
• compresses the cheek and it pulls the angli oris posteriorly
• called the trumpeter muscle and used when sucking
• 2 left and right of face

Answer 14

buccinator

Question 15

• extends from the skin over the master muscles to the corners of the mouth
• draws the corners of the mouth posteriorly
• 2 right and left of face

Answer 15

risorius

Question 16

• a muscle of facial expression that arises from the mandible to insert into the anguli oris
• depresses the angle of the mouth
• two right and left of face

Answer 16

depressor anguli oris

Question 17

• a muscle of facial expression
• depresses the lower lip inferiorly and slightly laterally
• 2 right and left of face

Answer 17

depressor labii inferioris

Question 18

• a muscle located on the tip of the chin
• elevates and protrudes the lower lip ; also wrinkles the skin over the chin
• 2 left and right of face

Answer 18

mentalis

Question 19

• a thin layer of muscle covering the anterior aspect of the neck
• wrinkles the skin of the neck and chest also depresses the mandible and angle oris as in pouring
• 2 left and right of neck

Answer 19

platysma

Question 20

• a thick muscle that originates from the head of the sternum and clavicle and inserts at the mastoid process of the temporal bone
• rotates and depresses the head

Answer 20

sternocleidomastoid

Question 21

• a double bellied muscle of the neck which attaches to the mastoid process and the mandible
• draws the hyoid bone posteriorly

Answer 21

digastric