Struggling with

Question 1

The neurocranium contains

Answer 1

1. brain
2. meninges
3. vasculature
4. cranial nerves

Question 2

what are the 3 singular visocranium bones

Answer 2

mandible, vomer, ethmoid

Question 3

sphenoid bone articulates with…

Answer 3

frontal
temporal
occipital
ethmoid
zygomatic
parietal
palatine
vomer

Question 4

bones contributing to the orbit

Answer 4

frontal
palatine
ethmoid
lacrimal
sphenoid
maxilla
zygomatic

Question 5

location of common tendinous ring

Answer 5

covers optic canal and portion of superior orbital fissure

Question 6

what muscle elevates the superior eyelid (SPELLING COUNTS)

Answer 6

levator palpebrae superioris

Question 7

Inferior oblique origin

Answer 7

orbital surface of maxilla

Question 8

levator palpebrae superioris origin

Answer 8

lesser wing of sphenoid bone

Question 9

temporal fossa location

Answer 9

depressed area on the side of the head. superior to the infratemporal fossa and starts at inferior temporal line

Question 10

aspects making up the infratemporal fossa

Answer 10

ramus of mandible
maxilla
lateral pterygoid plate
inferior surface of greater wing and squamus portion
mastoid and styloid processes

Question 11

lateral pterygoid muscle (superior head) origin

Answer 11

greater wing of sphenoid bone

Question 12

lateral pterygoid muscles acting together allow for

Answer 12

protrusion of the mandible

Question 13

action of temporalis

Answer 13

elevate and retract

Question 14

medial pterygoid Ms. superficial head origin

Answer 14

tuberosity of maxilla

Question 15

lateral sulcus is the

Answer 15

inferior to parietal and frontal to partially devide from temporal and occipital

Question 16

the central sulcus is

Answer 16

seperates the frontal and parietal lobes

Question 17

longitudinal cerebral fissure

Answer 17

separates the brain into 2 hemispheres

Question 18

how does the brainstem occupy the cranial fossas

Answer 18

midbrain lies in junction of middle and posterior cranial fossas
the pons is in the anterior portion of the posterior cranial fossa

Question 19

explain how the nasal cavity is separated

Answer 19

1/3 = olfactory area
2/3 = respiratory area

Question 20

what is the olfactory nerve in contact with

Answer 20

the inferior/orbital surface of the frontal lobe

Question 21

where does cranial nerve III emerge from

Answer 21

oculomotor emerges from the midbrain

Question 22

what are the 2 intra ocular muscles

Answer 22

sphincter pupillae muscle
ciliary muscle

Question 23

what type of information does the oculomotor carry

Answer 23

parasympathetic to the sphincter pupillae

Question 24

where does cranial nerve IV emerge from

Answer 24

posterior surface of midbrain

Question 25

where does cranial nerve VI emerge from

Answer 25

brain stem between pons and medulla

Question 26

2 purposes of cranial nerve V and what each does/gives

Answer 26

sensory = face, oral, nasal, sinus mucosa, teeth and tongue motor = muscles of mastication and 4 accessory muscles

Question 27

where does cranial nerve V emerge from

Answer 27

lateral aspect of pons

Question 28

2 layers of dura mater

Answer 28

periosteal and meningeal

Question 29

what are the arachnoid granulations

Answer 29

outward bulges of dura mater (transfers CSF to venous system) since its arachnoid matter that protrudes through the meningeal layer into the dural sinus

Question 30

where do the internal carotid arteries arise from

Answer 30

common carotid arteries and pass through the external opening of the carotid canal and internal opening within the petrous portion of the temporal bone

Question 31

from inferior to superior the ICA path/divisions

Answer 31

cervical to petrous to cavernous then the ICA becomes intra dural as the cerebral

Question 32

what do vertebral arteries arise from

Answer 32

subclavian arteries that passthrough C1-C6 transverse foramen to enter the cranium via the forman magnum

Question 33

CN V3 gets sensation from

Answer 33

- mucosa of mouth - skin over mandible - 2/3 of tongue - mandibular teeth - side of head -tempromandibular joint - lower lip

Question 34

what is the branch off V3 that goes in the opposite direction

Answer 34

auriculotemporal nerve

Question 35

what nerve travels through the mandibular and mental foramen

Answer 35

infra alveolar nerve

Question 36

what does V1 get sensation from

Answer 36

forehead superior eyelid muscosa of nasal cavity and sinuses nose scalp cornea

Question 37

what does V2 get sensation from

Answer 37

inferior eyelid maxillary teeth skin over maxilla upper lip palate muscosa of nose maxillary sinuses

Question 38

what branches off the anterior ethmoidal nerve

Answer 38

external nasal nerve

Question 39

what does the infraorbital nerve travel through

Answer 39

first the infra orbital fissure the the infra orbital groove and canal then finally the infra orbital foramen