Flashcards in Dr. P Lecture Deck (24)
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What anchors the falx cerebri?
Crista galli
1
What runs through the cribriform plates?
Olfactory cn
2
SUPERIOR ORBITAL FISSURE
transmits ?
CN III, IV, VI and V1-Opthalmic division
3
OPTIC CANAL transmits ?
CNII (optic nerve) and ophthalmic artery
4
FORAMEN ROTUNDUM transmits ?
CN V2 (maxillary division) to pterygopalatine fossa)
5
FORAMEN OVALE transmits ?
CN V3 (mandibular division) to infratemporal fossa
6
FORAMEN SPINOSUM
transmits ?
middle meningeal a & v
7
FORAMEN MAGNUM
transmits ?
medulla, meninges, vertebral and spinal vessels, and the spinal root of CN XI
8
INTERNAL ACOUSTIC MEATUS
transmits ?
CN VII and CN VIII
9
JUGULAR FORAMEN
transmits?
the internal jugular vein, CN IX, CN X and CN XI
10
HYPOGLOSSAL CANAL
transmits?
CN XII
11
Tentorium Cerebelli functions
Separates occipital lobes and cerebellum
Falx cerebri attaches at midline holding up forming a tent like appearanc
12
Sigmoid sinus ends where _____ begins...
Internal jugular vein
13
Auditory Ossicles
Malleus, Incus, Stapes
Transmit vibration from eardrum to inner ear
Amplify sound 20X
Suspensory ligaments hold ossicles in middle ear
14
ORBIT contains
1) eyeball
2) extra-ocular
muscles
3) ophthalmic
vessels
4) CN II,III, IV,
V1 and VI
15
Petrous temporal
houses ?
organs of hearing and balance
16
Dural infoldings
Infoldings separate cranial cavity into compartments
Limit the movement of the brain
4 infoldings exist
Falx Cerebri
Tentorium Cerebelli
Falx Cerebelli
Diaphragma Sellae
17
Falx Cerebelli
Partially separates the cerebellar hemispheres
18
Diaphragma Sellae
Smallest dural infolding Covers pituitary gland
19
Arachnoid villi
Projections of arachnoid mater through dura into
superior sagittal sinus
Valves help CSF pass into dural sinuses
20
Paranasal Sinuses
Air filled extensions of nasal cavity
Frontal
Ethmoidal
Sphenoidal
Maxillary
-- Largest of the sinuses
21
Pharyngotympanic (auditory) tube joins
middle ear to nasopharynx
22
Internal Ear
Hearing and Equilibrium
Contains the vestibulocochlear organ.
Reception of sound
Maintenance of balance
23
