test 5

Question 1

What are the functions of the nervous system?

Answer 1

voluntary/involuntary contractions, regulates (smooth/cardiac muscle, gland secretions, adipose tissue)

Question 2

What makes up the central nervous system?

Answer 2

brain and spinal cord

Question 3

Which nervous system controls skeletal muscles?

Answer 3

somatic nervous system (SNS)

Question 4

What are the functions of neuroglia?

Answer 4

separate and protect neurons, supportive framework for nervous tissue, act as phagocytes, regulate composition of interstitial fluid

Question 5

What are oligodendrocytes?

Answer 5

cells with sheet-like processes that wrap around axons

Question 6

What are Ependymal cells?

Answer 6

simple cuboidal epithelial cells that line fluid filled passageways within the brain and spinal cord

Question 7

What are microglia?

Answer 7

phagocytes that move through nervous tissue removing unwanted substances

Question 8

What is the most abundant class of neuron in the CNS?

Answer 8

Multipolar neurons

Question 9

What are telodendria?

Answer 9

the main axon trunk, communicate with other cells

Question 10

What is the main differences between the following channels: active, gated and leak?

Question 11

What is the all-or-none principle

Answer 11

the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus

Question 12

What is special about type A nerve fibers

Question 13

What types of neurotransmitters are released from Cholinergic synapses, from Adrenergic synapses?

Question 14

The effect that a neurotransmitter has on the postsynaptic membrane depends on what?

Question 15

excitatory postsynaptic potentials occur when

Question 16

inhibitory postsynaptic potentials are what kind of effect on local polarization

Question 17

What are neruoglia and how much of the nervous system do they account for?

Question 18

In the spinal cord, white matter is separated into ascending and descending tracts organized as what

Question 19

What are spinal meninges?

Question 20

The outward projections from the central gray matter of the spinal cord are called what

Question 21

Spinal nerves are: purely sensory, purely motor, both, neither?

Question 22

Know what areas of muscle the cervical and sacral regions innervate.

Question 23

What are all the ways reflexes can be classified?

Question 24

What does a tendon reflex do?

Question 25

What is a flexor reflex?

Question 26

What is reciprocal inhibition?

Question 27

Know the differences between the arachnoid, pia mater and dura mater

Question 28

What happens during meningitis

Question 29

What are the differences between the endoneurium and perinerium