Intro of Head; Face and Scalp

Question 1

bone: completely surrounds the brain and some of the major sense organs

Answer 1

neurocranium

Question 2

what does the neurocranium consist of?

Answer 2

1) basal bones

2) roofing bones

Question 3

which part of the neurocranium contrains all of the major foramina of the skull?

Answer 3

basal bones

Question 4

basal bones consist of:

Answer 4

• Ethmoid
• Temporal (petrous portion)
• Scaphoid
• Occipital

Question 5

Roofing bones consist of:

Answer 5

• parietal
• frontal
• temporal (squamous portion)

Question 6

bone: associated with feeding, respiration and communication; supports face and jaws

Answer 6

viscerocranium

Question 7

viscerocranium consists of:

Answer 7

• Maxilla
• Mandible
• Palatine
• Zygomatic
• Vomer
• Inferior nasal concha
• lacrimal
• nasal

Question 8

suture: b/w frontal and parietal bones

Answer 8

coronal

Question 9

suture: b/w left and right parietal bones

Answer 9

sagittal

Question 10

suture: separates the temporal bone from parietal bone

Answer 10

temporal (squamous)

Question 11

suture: separates occipital from parietal (and temporal) bones

Answer 11

lamboid

Question 12

suture: area sround a short suture b/w parietal bone and greater wing of sphenoid

Answer 12

pterion

Question 13

what is very thick and protencts the neurocranium?

Answer 13

Scalp

Question 14

layers of scalp proper

Answer 14

• Skin
• Connective tissue
• Apopneurosis

Question 15

other compotents of scalp besides scalp proper

Answer 15

• Loose connective (areolar) tissue

- Pericranium

Question 16

interconnections: spongy porous bone bw outer and inner cortical layers; usually found within roofing bones

Answer 16

Diploe

Question 17

( ) channels travel within Diploe

Answer 17

venous

Question 18

interconnection: connect scalp to inside neurocranium

Answer 18

emissary veins

Question 19

3 major arteries involved with supply to head

Answer 19

1) vertebral artery
2) internal carotid
3) external carotid

Question 20

artery supply: inside neurocranium

Answer 20

internal carotid and vertebral with minor contribution from middle meningeal

Question 21

artery supply: outside neurocranium

Answer 21

branches of external carotid; superficial temporal and occipital

Question 22

artery supply: outside of face

Answer 22

mainly facial branch of external carotid

Question 23

artery supply: inside face

Answer 23

maxillary branch of external carotid; opthalamic branch of internal carotid does inside orbit

Question 24

venous drainage: inside neurocranium

Answer 24

internal jugular

Question 25

venous drainage: outside face

Answer 25

facial vein (usually trans into internal jugular) but system is complex with many interconnections

Question 26

venous drainage: Danger area of face

Answer 26

1) facial vein 2) upper lip 3) bridge of nose

Question 27

infection or thrombi from danger area of face can travel to ( ) from facial to opthalmic veins to cavernous sinus

Answer 27

cranial cavity

Question 28

veins of the head lack what?

Answer 28

valves

Question 29

superficial cervical lymph nodes located where the head meets the neck drain to where?

Answer 29

deep cervical lymph nodes, mainly under the SCM

Question 30

provides sensory innervation to face and some motor to head

Answer 30

trigeminal nerve (V)

Question 31

trigeminal: supplies oribital regions (forehead and anterior scalp, upper eyelid and dorsum of nose), anterosuperior nasal cavity

Answer 31

opthalamic (V1)

Question 32

trigeminal: supplies upper jaw regions (lower eyelid, side of nose, upper lip and upper dentition), posteroinferior nasal cavity

Answer 32

Maxillary division (V2)

Question 33

trigeminal: supplies lower jaw region including lower dentition, skin anterior to ear, some sensory to inside oral cavity; motor to muscles of mastication

Answer 33

mandibular division (V3)

Question 34

( ) from cervical region provide sensory innervation to rest of head

Answer 34

dorsal or ventral primary rami

Question 35

facial nerve controls openings of what 3 cavities of the head?

Answer 35

1) eye 2) nasal 3) oral

Question 36

muscle: orbital part tightly closes eye; palpebral part for blinking

Answer 36

orbicularis oculi

Question 37

muscle: closes mouth and puckers lips

Answer 37

orbicularis oris

Question 38

muscle: compresses cheeks, helps keep food positioned bw occlusal surfaces of teeth for mastication, helps cheeks resist forces generated by blowing and sucking

Answer 38

buccinator