Dural Venosus sinus and Middle Ear

Question 1

Answer 1

Anterior Cranial Fossa

where the frontal lobes sit

Question 2

Answer 2

Incisive Canal of Maxillary bone

greater palatine arteries and nerves go (greater palantine artery important because it anastomes with nasopalitine a.)

Question 3

Answer 3

Lateral Pterygoid Plate of splenoid bone

Question 4

Answer 4

Medial Pterygoid Plate

tensor or tympani muscle runs around the hook

Question 5

Answer 5

fossa between the medial and lateral pteryroid bones

Wehre belly of tensor tympani muscle is found also terrygoid muscles here

Question 6

hole directly below the medial pterygoid

Answer 6

pterygoid canal

It transmits the nerve of pterygoid canal (great petrosal nerve and the deep petrosal nerve, which is from the carotid),

artery of the pterygoid canal and

vein of the pterygoid canal.

Question 7

hole at very tip of bottom butterfly wing

Answer 7

Foramen Spinosum

near spine of spleoid bone

foramen ovale is immediately medial to the foramen spinosum

Question 8

hole near foramen spinosum

Answer 8

foramen ovale

Question 9

what is pipecleaner in?

Answer 9

bony portion of the eustachian tube

inferior the opening of the carotid

oin top opening of the foramen ovale

Question 10

Answer 10

jugular foramen

Question 11

what is this lateral to the jugular foramen?

Answer 11

Stylomastoid Foramen

between styloid and mastoid processes

Question 12

Answer 12

Sphenoid Sinus

Question 13

Answer 13

greater palatine foramen

Question 14

Answer 14

cribiform plate of ethmoid bone (the olfactor bulbs wlould be suporerior to this)

Question 15

what is this?

how can infection drain here from superficial face?

Answer 15

Cavernous Sinus

Question 16

Answer 16

middle cranial fossa

semilunar ganglion located here, gsa cell bodies from v1 of trigem

Question 17

what would be on either sides of this on the Cribriform Plate of the Ethmoid Bone

Answer 17

olfactory bulbs

Question 18

Answer 18

optic nerve

CN 2

Question 19

Answer 19

occulomotor nerve

CN 3

Question 20

what is blue

Answer 20

anterior cranial fossa

Question 21

what is the yellow?

Answer 21

posterior cranial fossa

Question 22

What is this nerve? describe its course

Answer 22

facial nerve

enters the internal auditory meatus

travels behind the stapes and out through the stylomastoid canal

Question 23

what does this ganglion provide?

Answer 23

geniculate ganglia

Question 24

Answer 24

geniocular ganglion

Question 25

Answer 25

malleus

where the tensor tympani muscle inserts (protects the ear from damaging noises)

Question 26

Answer 26

incus

Question 27

Answer 27

malleus

Question 28

Answer 28

incus

Question 29

What is 6?

Answer 29

chorda tympani

parasympathetic: to submandibular and sublingual

special sensory: to anterior 2/3 of tongue

facial is behind stapes!