anatomy THE FACE, SCALP AND MUSCLES OF FACIAL EXPRESSION

Question 1

Muscles may attach to..

Answer 1

skin

Question 2

scalp is made up of

Answer 2

Skin
Connective tissue containing vessels and nerves
Aponeurosis of occipitofrontalis muscle
Loose areolar tissue
Periosteum of calvaria

Question 3

Muscles of facial expression originate from

Answer 3

mesoderm of second pharyngeal arch

Question 4

Muscles of facial expression innervated by

Answer 4

branches of CN VII

Question 5

function of occipital belly

Answer 5

covers part of occipital bone

anchors the muscle

Question 6

two parts of obicularis oculi muscle

Answer 6

palpebral—involuntary closure during blinking

Orbital—Involved in forced closure

Question 7

palpebral orbicularis oculi…
inserts -
arises-

Answer 7

medial palpebral ligament - maxilla

lateral palpebral raphe – zygomatic bone

Question 8

orbital orbicualris oculi arises…

Answer 8

1. nasal part of the frontal
   bone
2. medial palpebral ligament
3. frontal process of the maxil

Question 9

orbital orbicualris oculi inserts

Answer 9

orbit in concentric loops

Question 10

THE TARSAL PLATES functions

Answer 10

support eyelids

Question 11

Muscles of the nostrils

Answer 11

procerus
nasalis
Depressor septi
Dilator naris (anterior and posterior)

Question 12

function of procerus
nalasis

Answer 12

wrinkles over bridge of nose

– brings ala toward septum

Question 13

function of depressor septi
Dilator naris (anterior and posterior)

Answer 13

– Constrict apertures of the nares

–stops the nostrils to close from atmospheric pressure

Question 14

Orbicularis oris has what kind of fibres

Answer 14

Intrinsic and extrinsic fibres

Question 15

Orbicularis oris intrinsic fibres
arise
insert

Answer 15

• near midline on anterior surface of maxilla and mandible

- mucous membrane of margin of lips

Question 16

Orbicularis oris EXtrinsic fibres
arise
insert

Answer 16

• mostly from modiolus at angle of mouth

- the raphe with buccinator at modiolus

Question 17

function of buccinator

Answer 17

ºIt holds the cheek to the teeth and prevents sagging
ºsmiling
ºSecondary muscle of mastication ..Pushes food to the molars

Question 18

Buccinator: insert

arise

Answer 18

Modiolus – passing anteriorly into the upper and lower lips

Maxilla and mandible opposite molar teeth

Question 19

risorius - insert and arise

Answer 19

• Modiolus

- Parotid Fossa / fascia over the masseter muscle

Question 20

Risorius function

Answer 20

Raises corner of mouth (smiling)