Protexction Of The Brain

Question 0

Falx cerebri

Answer 0

Folds inward between l and r cerebral hemispheres

Question 1

Dura

Answer 1

Adheres closely to the bones of the skull
Inward folds help prevent rotational displacement
Large blood vessels enter here the process to smaller sized ones in pia

Question 2

Tentorium

Answer 2

Folds down/in between cerebrum and cerebellum

Question 3

Subdural space

Answer 3

Is below the dura mater -blood vessel come thru-if rupture -blood

Question 4

Subdural hemtoma

Answer 4

Blood looks with Subdural space causing pressure swelling disrupting Brian tissue

Question 5

What does csf do

Answer 5

Remove toxins and keep brain boyant

Question 6

Arachnoid

Answer 6

2nd layer

Weblike tissue extending between dura mater and down into folds/dulcimer of brain

Question 7

Subarachnoid place

Answer 7

Below arachnoid
Filled with csf
Acts as shock absorber

Question 8

Subarachnoid hemorrhage

Answer 8

Arachnoid rupture bleeding in space pressure >displace tissue

Question 9

Pis mater

Answer 9

3rd layer
Is thin and delicate
Contains blood vessels which supply oxygenated blood to the brain
Otherwise fluid should not/cannot permeate

Question 10

4 cerebral ventricles

Answer 10

Four spaces containing csf
Connects by channels, deep to the cortex
Csf circulates through ventricles

Question 11

2 laterals ventricles

Answer 11

1 in each cerebral hemisphere (l and r)
Crescent shaped
Drain/connect to the third ventricle via the foramen of Munro

Question 12

The third ventricle

Answer 12

Vertical
In mid-brain/subcortical
Disk shaped
Drains connects downward to the fourth ventricle via aqueduct of Sylvius

Question 13

Fourth ventricle

Answer 13

Long narrow downward extending tube through into brainstem

In pins and medulla structures of the brain stem

Question 14

What is csf

Answer 14

Clear color less fluid involved in cns protection

Produced by choroid plexus within the ventricles

Question 15

Where is csf

Answer 15

In subarachnoid space around the cerebrum and spinal cord
Circulates through ventricles and into the subarachnoid space
Ina continuous flow around the cerebrum, brainstem, spinal cord

Question 16

Functions of csf

Answer 16

Regulate pressure within cranium
Provide cushion against blows to the head
Provides floating like effect so that weight of brain does not crush structures, reduces weight if brain insignificantly

Question 17

Functions of csf

Answer 17

Assists in nourishment if tissue

Assists in removal if metabolic wate products via bloodstream

Question 18

How does csf get to the subarachnoid space

Answer 18

Circulates from laterals to third via foramen of Munro

Question 19

Circulates for third to fourth

Answer 19

Via aqueduct of Sylvius blockage cause disruption

Reabsorbed by arachnoid vili, venous sinuses of brain

Question 20

Key needs of csf

Answer 20

Open flow to prevent accumulation of fluid (hydrocephalus) or swelling and displacement of other brain structures
To Maintain stable volume
Be free of blood cells

Question 21

Csf problems

Answer 21

Hydrocephalus, encephalitis, hemorrhage