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Question 1

Brain and spinal cord develop from

Answer 1

neural tissue in embryo + fetus with cavity filled with CSF that develops into ventricles

Question 2

give the five ventricles

Answer 2

lateral ventricle, 3rd ventricle, cerebral aquadect, 4th ventricle, central canal

Question 3

the CSF also around the brain and spinal cord in the

Answer 3

Subarachnoid space: this helps brain along with central bones (skull) + meninges

Question 4

what are the three meninges of the brain?

Answer 4

dura mater
arachnoid mater
pia mater

Question 5

Dura Mater

Answer 5

2 layers- one fused to periosteum + other Inner= meningial layer makes some dural folds to anchor brain and hold dural sinsus

Question 6

the dura mater is responsible for forming structures such as

Answer 6

the falx cerebri, falx cerebelli, and tentorium cerebelli.

Question 7

what are dural sinuses

Answer 7

Special Brain Veins = Superior Sagittal Sinus

Question 8

Arachnoid Mater?

Answer 8

subarachnoid space contains CSF: cushions and provides nutrients, ions, o2 to the brain

Question 9

Pia Mater?

Answer 9

tight on all fold = Gyri and into all sulci inbetween these

Question 10

Gyri of the cerebrum will

Answer 10

increase surface area for increase gray matter which will increace neuron cell bodies for increased mental functions