chapter 17 study questions

Question 1

brain and spinal cord

Answer 1

CNS components

Question 2

nerves emanating from brain and spinal cord

Answer 2

PNS components

Question 3

match functions
sensory, integrative, motor 
with
peripheral nerves
muscles and glands
CNS

Answer 3

sensory = peripheral nerves
integrative = central nervous system
motor = muscles and glands

Question 4

clear serum like fluid that provides nutrition for the CNS and liquid cushion

Answer 4

CSF

Question 5

list defenses of brain and spinal cord

Answer 5

phagocytic microglia and macrophages
lower levels of MHC expression
skull and vertebrae
CSF
blood-brain barrier
meninges

NOT:
enhanced phagocytic activity
enhanced complement levels
rapid inflammatory response (remember: CNS is immune privileged)

Question 6

the term _____ refers to a partial or different immune response in the CNS, eyes, and uterus

Answer 6

immune privilege

Question 7

the normal biota of CNS and PNS includes

Answer 7

there is no normal biota in the NS

Question 8

the _______ nervous system is an immunologically privileged site

Answer 8

central

Question 9

which type of organism causes the most serious type of meningitis?

Answer 9

bacteria

Question 10

bacterial entrance to the nervous system is often a result of coinfection or previous infection of viruses affecting the ______

Answer 10

resp system

Question 11

to obtain a sample of CSF in suspected cases of meningitis, what is usually performed?

Answer 11

spinal tap/lumbar puncture

Question 12

which of the following are typical signs and sx of most cases of meningitis?

increased WBC in CSF
increased neutrophils in blood
diarrhea
fever
headache
resp paralysis

Answer 12

increased WBC in CSF
fever
headache

*also stiff/sore neck

Question 13

meningitis can manifest as ______ or ______

Answer 13

chronic or acute

Question 14

a gram-neg diplococcus that causes 15-20% of cases of meningitis is

Answer 14

Neisseria meningitidis