Block 4 Anatomy Md 1 Brain ( Blood Supply), Head And Neck Brs

Front 1

Pia mater

- what is it?
where is it?

Back 1

It is a delicate investment that is closely applied to the brain and dips into fissures and sulci;
it enmeshes blood vessels on the surface of the brain

Front 2

Arachnoid layer

Back 2

Is located outside the pia mater;
is connected to the pia mater by web-like trabeculations;

Front 3

Subarachnoid space

is between what two layers?
Contains what?

Back 3

btw pia mater and arachnoid mater, filled with CSF

Front 4

Arachnoid villi

Back 4

projections of arachnoid layer into the venous sinuses;

is the site where CSF drains into blood

Front 5

CSF

- where is it found?
where is it produces?

Back 5

found in the subarachnoid space btw pia and arachnoid layers; found in ventricles of the brain; formed by choracoid plexuses in the ventricles

Front 6

Dura mater

- where is it?
what does it form?

Back 6

tough, fibroud OUTERMOST layer of meninges;
forms the DURAL VENOUS SINUSES

Front 7

Epidural Space

Back 7

lies outside the dura mater,
is a POTENTIAL space that contains the middle meningeal artery in the cranial cavity

Front 8

Subdural Space

Back 8

is internal to the dura mater, between the dura mater and arachnoid mater

Front 9

Pial hemorrhage

Back 9

due to damage to the small vessels of the pia and brain tissue

Front 10

Cerebral hemorrhage

Back 10

caused by rupture of the LENTICULOSTRIATE arteries

Front 11

Subarachnoid hemorrhage

Back 11

due to rupture of CEREBRAL arteries, CIRCLE OF WILLIS

Front 12

Subdural hematoma

Back 12

due to rupture of CEREBRAL VEIN

Front 13

Epidural hematoma

Back 13

rupture of MIDDLE MENINGEAL ARTERY

Front 14

Innervation of the dura mater

from what nerves?

Back 14

1) anterior and posterior ethmoidal from V1

2) Meningeal branches of maxillary and mandibular

3) Meningeal branches of vagus & hypoglossal

Front 15

Falx Cerebri

- what is it?
what does it contain?

Back 15

IS a sickle-shaped double layer of the dura mater,
lies btw the cerebral hemispheres;
contains the inferior sagittal sinus & superior sagittal sinus

Front 16

What two things does the Falx Cerebri attach to?

Back 16

anteriorly to CRISTA GALLI,

posteriorly to TENTORIUM CEREBELLI

Front 17

Falx Cerebelli lies between...and contains...is attached to...

Back 17

two cerebellar hemispheres;

contains the occipital sinus;
attached to the posterior and inferior parts of the tentorium

Front 18

Tentorium Cerebelli

- what does it cover?
what is it attached to?

Back 18

covers the cerebellum;
free border is attached to anterior

clinoid process;
attached border is attached to the posterior clinoid process

Front 19

The diaphragm sellae forms the roof over what structure?
What lies beneath it?

Back 19

Forms roof over sella turcica of sphenoid; covers the pituitary gland (hypophysis)

Front 20

Superior sagittal sinus receives...

Back 20

cerebral, diploic meningeal, parietal emissary veins

Front 21

Inferior Sagittal sinus joins...

Back 21

the great cerebral vein of Galen

Front 22

Straight Sinus is formed by the union of...

Back 22

the inferior sagittal sinus and the greatn vein of Galen

Front 23

Transverse Sinus run along..

Back 23

the edge of the tentorium cerebelli from the confluence of sinuses, becomes the sigmoid sinuses

Front 24

Sigmoid sinuses are a continuation of the...and become...

Back 24

transverse sinuses;
become the IJV at the jugular foramen

Front 25

Cavernous Sinuses are located where?

Back 25

on each side of the sella turcica
and
the body of the sphenoid bone;

lie btw the two layers of dura mater;

Front 26

What structures are located within the Cavernous Sinuses?

Back 26

the Internal Carotid artery & the Abducens nerve (CN VI)

Front 27

What structures pass in the lateral wall of the cavernous sinus?

Back 27

OTOM:
Oculomotor (CN III)
Trochlear (CN IV)
Opthalmic (CN V1)
Maxillary (CN V2)

Front 28

Superior Petrosal sinus connects...

Back 28

the posterior end of the cavernous sinus to the transverse sinus

Front 29

Inferior Petrosal sinus connects...

Back 29

cavernous sinus to IJV

Front 30

Occipital Sinus is where? drains to where?

Back 30

lies in falx cerebelli and crains into confluence of sinuses

Front 31

Basilar plexus connects...

Back 31

the two inferior petrosal sinuses

Front 32

Internal Carotid artery enters the cranial cavity via what channel?

Back 32

the carotid canal

Front 33

Branches of the internal carotid artery...

Back 33

1) Opthalmic
2) posterior communicating artery
3) middle cerebral artery
4) anterior cerebral artery
5) anterior choroidal artery

Front 34

Vertebral artery runs in the...

Back 34

transverse foramina of vertebrae C1-C6

Front 35

Vertebral arteries join to form...

Back 35

basilar artery

Front 36

Branches of the vertebral artery...

Back 36

posterior spinal artery,
anterior spinal artery,
posterior-inferior cerebellar artery

Front 37

Basilar artery branches

Back 37

pontine,
labyrinthe
superior-inferior cerebellar
anterior cerebellar
posterior cerebral arteries

Front 38

Circle of Willis is formed by...

Back 38

anterior cerebral arteries
anterior communicating artery
middle cerebral artery
posterior cerebral artery
posterior communicating artery