lab 7

function of astrocyte

branched gila that nourish neurons and provide a barrier between the nervous tissue and the blood- part of forming the blood brain barrier

function of ependymal cell

line ventricle of the brain and serve as a barrier between the fluid in the area and the nervous tissue

function of the oligrodendrocyte

cells that produce myelin in the CNS

the brain belongs to which division of the nervous system

central nervous system

the spinal nerve belongs to what division of the nervous system

peripheral nervous system

the spinal chord belongs to what division of the nervous system

central nervous system

what division of the nervous system is dedicated to subconscious function

autonomic nervous system

3 main parts of neron

soma, dendrite, axon

which part of neron is nucleous found

soma

what is another name for efferent neuron

motor neuron

if a neuron has a soma with a dendrite on one side and an axon on the other, what kind of neuron is it

bipolar neuron

2 adjacent neurons communicate with one another across a space- what is space called?

synaptic cleft or synaps

in terms of function, how are gilas different from neurons?

gila support protect and insulate neurons but do not generate electrical impulses like neurons do

in which one of the 3 nervous system divisions are neuraolemmocytes found?

peripheral nervous system

myelin is made of what kind of material?

lipids (fats) and protiens

threshold voltage in nerve conduction

minimum voltage required for nerve conduction

maximum recruitment voltage in nerve conduction

voltage at which the muscle contracts maximally- obtained when all neurons of a particular nerve are stimulated

structure that receives stimulus from the external environment and relays it to the sensory neuron

sensory receptor

different name for efferent neuron

motor neuron

reflex

motor response to a stimulus without conscious thought- involuntary, predictable responses to stimuli

what kind of reflex have just 2 neurons

monosynaptic reflex arcs

polysynaptic reflexes have something have something not found in a monosynaptic reflex- what is it?

integration center- takes info to the brain

what kind of reflex is a patellar reflex in terms of number of synapses?

monosynaptic reflex

operating room recovery vs nerve recovery

what action occurs with a hyperreflexic response

showing an exaggerated response

what action occurs with a hyporeflexic response

show less than average response