head anatomy Flashcards Preview

MED 2042 Wks 1-5 > head anatomy > Flashcards

Flashcards in head anatomy Deck (24)
Loading flashcards...
1

bones around pterion

temporal, parietal, sphenoid (greater wing), frontal

2

anterior fontanelle

18 mnths

3

posterior fontanelle

2-3 mnths

4

sphenoidal fontanelle

2-3 mnths

5

mastoid fontanelle

6-18 mnths

6

foramen caecum

nasal emissary vein

7

olfactory foramina in cribiform plate

olfactory nerve

8

optic canal

optic nerve
ophthalmic artery

9

superior orbital fissue

CN3,4,6, V1, opthlmic veins

Oculomotor
Trochlear
Abducent nerve
ophthalmic division of
trigeminal

10

formaen rotundem

V2

11

foramen ovale

V3, lesser petrosal

12

foramen spinosum

middle meningeal artery

13

foramen lacerum

Nothing
Just Greater petrosal nerve and other vessels passing superiorly across it

14

internal acoustic meatus

CN7, 8, labyrinthe artery

facial nerve
vestibulocochlear nerve

15

jugular foramen

CN9, 10, 11, internal jugular vein, sigmoid sinus

16

Hypoglossal canal (near the foramen magnum)

CN 12

17

stuff inside cavernous sinus

maxillary
ophthalmic
abducens
internal carotid artery
trochlear
occulomotor

18

epidural haemorrhage

blood bw skull and dura mater

causes: blow to side of head, trauma

signs: unconscious then conscious then unconcious

paths-tearing of arteries in that space e.g. middle meningeal

19

subdural haemorrhage:

blood bw dura and arachnoid

patho- tearing of bridging veins

causes: car accidents, moving then stopping. old ppl, alchoholics, shearing forces

signs: headache that gets worse,intellectual slowing, unsteadiness, drowsiness

20

subarachnoid haemorrhage

blood in subarachnoid space

from tearing of arteries in there

thunderclap headache, being kicked int the back of head,stiffness in neck, vomiting

medical emergency

cerebral aneurysm

21

meningitis

fever, headache, neck stiffeness

22

CSF circulaion

1. Made by choroid plexus in lateral ventricles
2. Goes through interventricular foramina
3. Into 3rd ventricle, where choroid plexus adds more CSF
4. Thorugh cerebral aqueduct
5. Into 4th ventricle, where choroid plexus adds more CSF
6. Out through median and lateral apertures
7. Into subarachnoid space
8. Drains into dural venous sinuses through the arachnoid villi

23

internal carotid artery

sympa and venous plexus wrap around it

• Branches are the anterior and middle cerebral arteries

24

wat drains into cavernous sinus?

superior and inferior ophthalmic viens
superficial middle cerebral vein