Cranial cavity and orbit

Question 1

which vessel and part does the middle meningeal artery branch from

Answer 1

maxillary artery, first part

Question 2

what do the arachnoid granulations in the superior saggital sinus do?

Answer 2

Transfer CSF from the subarachnoid space to the venous sinus

Question 3

which muscles are innervated by the spinal accessory nerve?

Answer 3

trapezius and SCM

Question 4

lacrimal nerve function?(part of ophthalmic)

Answer 4

sensation to conjunctiva, upper eyelid skin, lacrimal gland and forehead

Question 5

what sinuses are within the falx cerebri?

Answer 5

superior saggital sinus and inferior saggital sinus

Question 6

sinuses in the tentorum cerebelli?

Answer 6

straight sinus and superior petrosal sinus

Question 7

anterior attachment of the falx cerebri?

Answer 7

crista galli

Question 8

what structure does the pituitary gland travel through?

Answer 8

Diaphragma sellae

Question 9

3 branches of ophthalmic nerve

Answer 9

frontal, lacrimal and nasociliary

Question 10

branches from which fibres pass through ciliary ganglion?

Answer 10

nasociliary

Question 11

parasympathetic fibres from ciliary ganglion are carried by which nerve?

Answer 11

oculomotor

Question 12

secretomotor innervation to lacrimal gland?

Answer 12

Facial nerve

Question 13

Which foramen does the spinal accessory nerve exit the cranial cavity

Answer 13

jugular foramen

Question 14

all structures passing through ovale

Answer 14

mandibular nerve
accessory meningeal artery 
lesser petrosal nerve
emissary vein 
otic ganglion

Question 15

structures through foramen spinosum

Answer 15

middle meningeal art and vein, meningeal branch of mandibular n.

Question 16

Jugular foramen

Answer 16

gloosopharyngeal, vagus and accessory n., sigmoid and inferior petrosal sinus, occipital artery etc

Question 17

stylomastoid foramen

Answer 17

stylomastoid artery and facial nerve

Question 18

consequence of venous thrombus in cavernous sinus

Answer 18

paralysis of extraocular muscles, pupillary dilation and parasthesia over cheeks and forehead

Question 19

dilation of pupil and inability to move left eye? also ptosis

Answer 19

extraocular muscles affected, damage to the cranial nerves oculomotor, trochlear and abducens and dilation caused by lost parasympathetic innervation to pupils. Ptosis a result of lack of innervation to levator palpibri superioris- CNIII