chapter 4

Question 1

cranium

Answer 1

bone surrounding the human brain

Question 2

8 bones of the cranium

Answer 2

frontal, right and left parietal, right and left temporal, occipital, ethmoid, and sphenoid

Question 3

cranium structure

Answer 3

has an outer surface and inner surface varies based on location

Question 4

cranium function

Answer 4

protects the brain from external environment

Question 5

duramater

Answer 5

outermost layer

Question 6

arachnoid membrane

Answer 6

middle layer with a delicate and fibrous membrane

Question 7

subarachnoid space

Answer 7

CSF is produced and stored

Question 8

piamater

Answer 8

innermost and thinnest layer

Question 9

ventricular system

Answer 9

4 ventricles: right and left ventricle, 3rd ventricle, 4th ventricle
main function is to produce CSF and store it

Question 10

function of CSF

Answer 10

prevent any structural damage of the cranium
-during a TBI brain swelling and blood may cause more space pushing CSF out

Question 11

normal pressure hydrocephalus

Answer 11

a disorder associated with gait deficits, enlarged brain, ventricles in the absence of another cause
-coexist with frontal and subcortical cognitive deficits

Question 12

hydrocephalus part 2

Answer 12

-80% of cases go unrecgonized
-tx can reverse the symptoms

Question 13

focal lesions

Answer 13

area of damage is in 1 single location

Question 14

multifocal lesions

Answer 14

area of damage involves mutiple isolated locations

Question 15

diffuse brain injury

Answer 15

area of damage involves a widespread area

Question 16

open head injuries (penetrating)