Meninges & Ventricles

Question 1

The brain requires __________ and ________________ support to function.

Answer 1

structural and nutritional

Question 1

connective tissue that protect the CNS and create a space for the brain to float in a supportive fluid

Answer 1

meninges

Question 2

Are the meninges helpful for structural or nutritional support to function?

Answer 2

structural

Question 3

Is CSF helpful for structural or nutritional support to function?

Answer 3

nutritional

Question 4

What are hollow spaces that allow CSF to flow?

Answer 4

ventricles

Question 5

What surround the surface of the brain and spinal cord?

Answer 5

meninges

Question 6

Name the three membranes that surround and protect the brain and spinal cord. (outer to inner)

Answer 6

1. Dura mater
2. Arachnoid mater
3. Pia mater

Question 7

What is the outer layer that adheres to the bones of the skull?

Answer 7

periosteal

Question 8

The ____________ surrounds the surface of the brain, and it’s folded within hemispheres.

Answer 8

inner meningeal layer

Question 9

TRUE OR FALSE:
The sites of attachment of the dura mater keep the brain from jostling around in the skull

Answer 9

TRUE

Question 10

Folds in the meningeal layer of the dura divide two hemispheres, which forms…?

Answer 10

falx cerebri (false brain)

Question 11

The cerebrum from the cerebellum, forming the __________.

Answer 11

tentorium cerebelli

Question 12

Where two portions of the dural folds separate, they form hollow space between them. What shape is the hollow space?

Answer 12

triangle

Question 13

Spaces known as _______________ are occupied by structures that drain the brain’s blood.

Answer 13

dural venous sinuses

Question 14

What is the web like structure that allows for CSF to flow?

Answer 14

arachnoid mater

Question 15

What attach to the meningeal layer and the pia mater to “cushion” the brain

Answer 15

arachnoid trabeculae

Question 16

What are small tufts of arachnoid mater that project into the dural venous sinuses, where the CSF is drained ?

Answer 16

Arachnoid granulations

Question 17

Thin, delicate membrane attached to the convolutions of the brain is called ____________. It is also HIGHLY VASCULAR.

Answer 17

Pia mater

Question 18

Name three ventricles that are connected through narrower aqueducts and canals.

Answer 18

1. Lateral ventricles
2. Third ventricle
3. Fourth ventricle

Question 19

The CSF is produced by a specialized tissue known as the _______________.

Answer 19

choroid plexus

Question 20

What is formed by ependymal cells surrounding a capillary?

Answer 20

choroid plexus

Question 21

Where are the choroid plexi found?

Answer 21

roof of every ventricle

Question 22

The CSF exchanges what four things while also lubricating the brain?

Answer 22

1.) gases (O2 and CO2)
2.) nutrients
3.) ions
4.) waste

Question 23

In what way does the CSF flow?

Answer 23

In one direction (Several structures ensure that this flow is correct)

Question 24

____________ in ependymal cells in the choroid plexus promote
CSF circulation

Answer 24

Microvilli

Question 25

_______________ act as one-way valves, draining CSF into the dural sinuses .

Answer 25

Arachnoid granulations/villi