Brainstem, Cerebellum, and Brain Flashcards Preview

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Flashcards in Brainstem, Cerebellum, and Brain Deck (15):
1

What protects the central nervous system

cranial bones, cranial meninges, and cerebrospinal fluid

2

The 3 layers that make up the cranial meninges are the same the make up the spinal meninges, what are they?

dura mater, arachnoid mater, pia mater

3

Where is the subarachnoid space located

between the arachnoid and pia

4

What are dural sinuses

are large veins in dural folds that collect venous blood from the brain and drain into the internal jugular vein to return blood to the heart.

5

The dura mater also includes 3 folds the stabilize and support the brain, what are they called?

falx cerebri, falx cerebelli, and tentorium cerebelli

6

What are ventricles filled with

cerebral spinal fluid

7

What interconnects lateral ventricles and the 3rd ventricle

interventricular foramen

8

What interconnects 3rd and 4th ventricles

cerebral aqueduct

9

In the 4th ventricle, what allows CSF to pass from ventricles(inside brain) to subarachnoid space(outside brain)

Lateral foramen

10

What does cerebrospinal fluid do

bathes the entire exposed surfaces of the CNS and circulates from the ventricles into the subarachnoid space.

11

What is cerebrospinal fluid produced by

choroid plexus, a specialized epithelium in brain ventricles that produces CSF from extravascular fluid in the CNS

12

Where does CSF circulate

it circulates from ventricular space into subarachnoid space

13

How does CSF return from subarachnoid space

From subarachnoid space it is returned to venous circulation through arachnoid granulations found in dural venous sinuses

14

The brainstem is defined by what

the central trunk of the brain, which consists of the medulla, pons and midbrain. It continues caudally to form the spinal cord.

15

White matter pathways connect the lobes of individual hemispheres (associational connections), the right and left cerebral hemispheres (commissural connections), and the cerebrum with the diencephalon, brainstem and spinal cord (projectional connections).

White matter pathways connect the lobes of individual hemispheres (associational connections), the right and left cerebral hemispheres (commissural connections), and the cerebrum with the diencephalon, brainstem and spinal cord (projectional connections).