Dr. P Lecture

Question 0

What runs through the cribriform plates?

Answer 0

Olfactory cn

Question 1

What anchors the falx cerebri?

Answer 1

Crista galli

Question 2

SUPERIOR ORBITAL FISSURE

transmits ?

Answer 2

CN III, IV, VI and V1-Opthalmic division

Question 3

OPTIC CANAL transmits ?

Answer 3

CNII (optic nerve) and ophthalmic artery

Question 4

FORAMEN ROTUNDUM transmits ?

Answer 4

CN V2 (maxillary division) to pterygopalatine fossa)

Question 5

FORAMEN OVALE transmits ?

Answer 5

CN V3 (mandibular division) to infratemporal fossa

Question 6

FORAMEN SPINOSUM

transmits ?

Answer 6

middle meningeal a & v

Question 7

FORAMEN MAGNUM

transmits ?

Answer 7

medulla, meninges, vertebral and spinal vessels, and the spinal root of CN XI

Question 8

INTERNAL ACOUSTIC MEATUS

transmits ?

Answer 8

CN VII and CN VIII

Question 9

JUGULAR FORAMEN

transmits?

Answer 9

the internal jugular vein, CN IX, CN X and CN XI

Question 10

HYPOGLOSSAL CANAL

transmits?

Answer 10

CN XII

Question 11

Tentorium Cerebelli functions

Answer 11

 Separates occipital lobes and cerebellum

 Falx cerebri attaches at midline holding up forming a tent like appearanc

Question 12

Sigmoid sinus ends where _____ begins…

Answer 12

Internal jugular vein

Question 13

Auditory Ossicles

Answer 13

 Malleus, Incus, Stapes
 Transmit vibration from eardrum to inner ear
 Amplify sound 20X
 Suspensory ligaments hold ossicles in middle ear

Question 14

ORBIT contains

Answer 14

1) eyeball
2) extra-ocular
muscles
3) ophthalmic
vessels
4) CN II,III, IV,
V1 and VI

Question 15

Petrous temporal

houses ?

Answer 15

organs of hearing and balance

Question 16

Dural infoldings

Answer 16

 Infoldings separate cranial cavity into compartments
 Limit the movement of the brain
 4 infoldings exist
 Falx Cerebri
 Tentorium Cerebelli
 Falx Cerebelli
 Diaphragma Sellae

Question 17

Falx Cerebelli

Answer 17

 Partially separates the cerebellar hemispheres

Question 18

Diaphragma Sellae

Answer 18

 Smallest dural infolding  Covers pituitary gland

Question 19

Arachnoid villi

Answer 19

 Projections of arachnoid mater through dura into
superior sagittal sinus
 Valves help CSF pass into dural sinuses

Question 20

Paranasal Sinuses

Answer 20

 Air filled extensions of nasal cavity
 Frontal
 Ethmoidal
 Sphenoidal
 Maxillary
-- Largest of the sinuses

Question 21

Pharyngotympanic (auditory) tube joins

Answer 21

middle ear to nasopharynx

Question 22

Internal Ear

Answer 22

 Hearing and Equilibrium
 Contains the vestibulocochlear organ.
 Reception of sound
 Maintenance of balance

Question 23

Preganglionic parasympathetic axons
leave the brainstem in four
cranial nerves:

Answer 23

III
VII
IX
X