Lecture 10

Question 1

What are the borders of the face?

Answer 1

-between eyebrow and chin

Question 2

Which region covers the superior, lateral and posterior of the calvaria?

Answer 2

scalp

Question 3

What are the 5 layers of the scalp?

Answer 3

• skin
• connective tissue
• aponeurosis
• loose areolar tissue
• periosteum

Question 4

thin tendinous sheet connects occipital and frontal bellies of occipitofrontalis muscle

Answer 4

aopneurosis

Question 5

Which muscle moves the scalp, wrinkles the forehead, and raises the eyebrows?

Answer 5

occiptalfrontalis muscle

Question 6

which layer of the scalp contains emissary veins?

Answer 6

loose areolar tissue

Question 7

What are the 3 functional groups of the fascial muscles?

Answer 7

• orbital
• nasal
• oral

Question 8

What are the two muscles of the orbital group?

Answer 8

• orbicularis oculi (superficial)

- corrugator supercilii (deep)

Question 9

What are the functions of the orbital and palpebral of the orbicularis oculi?

Answer 9

• orbital-forcefully close eyelid

- palpebral-gently close eyelid

Question 10

What is the function of the corrugator supercilii?

Answer 10

draw eyebrows medially and downward

Question 11

What are the 3 muscles of the nasal group?

Answer 11

• nasalis (transverse and alar)
• procerus
• depressor septi

Question 12

What are the function of the transverse and alar of the nasalis muscle?

Answer 12

• transverse-compress nasal aperture

- alar-open nostril

Question 13

What is the function of the procerus?

Answer 13

-draws medial eyebrows downward and makes transverse wrinkles over bridge of nose

Question 14

What is the function of the depressor septi?

Answer 14

-pull nose inferiorly

Question 15

What is the function of the obicularis oris?

Answer 15

close lips and protrudes lips

Question 16

Which muscle compress cheeks, and pressing cheeks against teeth?

Answer 16

buccinator

Question 17

Which muscle raise and protrudes lower lip and wrinkle skin on chin?

Answer 17

mentalis

Question 18

What is the function of the levator labii superioris alaeque nasi (LLSAN)?

Answer 18

most medial, lift upper lip and open nostrils

Question 19

What is the function of levator labii superioris?

Answer 19

-lift upper lip

Question 20

What are the functions of the zygomatic major and minor?

Answer 20

major-help smile, raise corner of mouth

minor-help smile

Question 21

What is the function of the levator anguli oris?

Answer 21

raise corner of mouth

Question 22

Which two muscles raise the corner of the mouth?

Answer 22

zyogmatic major and levator anguli oris

Question 23

Which muscle depresses corner of the mouth?

Answer 23

depressor anguli oris

Question 24

Which muscle depress lower lip?

Answer 24

depressor labii inferioris

Question 25

Which muscle pull mouth backward and outward?

Answer 25

risorius

Question 26

What are the main branches of the ECA?

Answer 26

- facial artery - maxillary artery - superficial temporal artery

Question 27

What are the ligaments of the temporomandibular joint?

Answer 27

- temporomandibular (lateral and capsular) - stylomandibular - sphenomandibular

Question 28

What are the functions of the temporomandibular joint ligaments?

Answer 28

- prevent dislocation - connect mandible to cranium - define movement border of mandible

Question 29

What are the 4 movements of the mandible?

Answer 29

- protrusion - retraction - elevation - depression

Question 30

What are the 4 muscles of mastication?

Answer 30

- temporalis - masseter - medial pterygoid - lateral pterygoid

Question 31

Which mastication muscles elevate mandible?

Answer 31

temporalis, masseter, and medial pterygoid

Question 32

Which mastication muscles protrude mandible?

Answer 32

lateral pterygoid

Question 33

Which fossa is a fan shape at the temple of the head?

Answer 33

temporal fossa

Question 34

Which fossa has an irregular shape, inferior of temporal fossa, and medial to zygomatic arch?

Answer 34

infratemporal fossa

Question 35

What are the 4 contents of the temporal fossa?

Answer 35

- temporalis muscle - branches of CNV - branches of maxillary artery - branches of superficial temporal artery

Question 36

What are the contents of the infratemporal fossa?

Answer 36

- inferior part of temporalis muscle - sphenomandibular ligament; lateral and medial pterygoid - maxillary artery and its branches - branches of CNV, CNVII, CNIX - octic ganglion

Question 37

What is between the external and middle ear?

Answer 37

tympanic membrane

Question 38

What is between the middle and internal ear?

Answer 38

temporal bone

Question 39

What are the surface features of the external ear?

Answer 39

- auricle: (majorly cartilage), helix, lobule, concha, tragus, antitragus - external acoustic canal

Question 40

The tympanic membrane is attached to what?

Answer 40

malleus

Question 41

Which part of the middle ear equalizes pressure?

Answer 41

pharyngotympanic tube

Question 42

What 3 bones comprise the auditory ossicles? And what is their main function?

Answer 42

- malleus, incus, stapes | - transmit vibration

Question 43

Which part of the middle ear prevents excessive oscillation?

Answer 43

stapedius

Question 44

Where are the bony and membranous labyrinth found?

Answer 44

-internal ear

Question 45

What are the 3 organs of balance?

Answer 45

- semicircular canals and ducts - utricle - saccule

Question 46

What comprises the organ of hearing?

Answer 46

cochlea and cochlear duct