The Central Nervous System

Question 1

Connective Tissue Coverings of Brain & Spinal Cord

Answer 1

MENINGES:

Question 2

dense connective tissue

Answer 2

Dura Mater

Question 3

Dura Mater Made of two-layers:

Answer 3

Periosteal layer (outer) and Meningeal layer (inner)

Question 4

Forms ________ :Folds/partitions that separate major brain areas and prevent excessive movement of the brain within the skull.

Answer 4

septa

Question 5

Forms _______ : Cavity above the brain (formed by a separation in the two dural layers); Returns blood & CSF from the brain to the general circulation (bloodstream)

Answer 5

dural sinus

Question 6

epithelium, collagen & elastic fibers

Answer 6

Arachnoid Mater

Question 7

Connected to pia mater by wispy, spider web-like fibers (in subarachnoid space)

Answer 7

Arachnoid Mater

Question 8

Forms arachnoid villi: extensions that allow CSF to enter the dural sinus

Answer 8

Arachnoid Mater

Question 9

________is constantly being remade with the “used” fluid returned to the bloodstream

Answer 9

CSF

Question 10

areolar/loose connective tissue

Answer 10

Pia Mater

Question 11

Bound tightly to surface of brain and spinal

Answer 11

Pia Mater

Question 12

Highly vascularized; Holds/supports blood vessels that supply brain and spinal cord

Answer 12

Pia Mater

Question 13

Forms choroid plexuses

Answer 13

Pia Mater