Neurons ? ? ? ? ????????????????????????????

1 ) Neurons send signals throughout the body. When an impulse is within a neuron, it is electrical. When the signal moves, it is
A : electrical
B : chemical
c: ionic
d: signals don't move between neurons


2) what allows neurons to generate an action potential and keep it moving through the neuron?
a- presence of a synapse
b- production of neurotransmitter
c- location of the terminal
d- distribution of ions

3) What kind of neuron passes messages to muscles?
a- sensory neurons
b- motor neurons
c-synaptic neurons
d- interneurons

4) what causes an action potential to travel down an axon?
a- potassium ions rush into the axon, making it positive
b-sodium ions rush into axon, making it negative
c- sodium ions leave the axon , making it negative
d- sodium ions rush into the axon, making it positive

5) where in the nervous system would you find neurotransmitters?
a- in the synapses
b- in the neuron cell bodies
c- in the axon
d- in the dendrites



Please be an angel (: and help me on my homework ive been stuck on this for two days . :((((("

1.)it is electrical
2.)synapses consists of neurotransmitters like acetocholine
3.)motor neurons(Motor neurons receive signals from the brain and spinal cord, cause muscle contractions, and affect glands).
4.)sodium ions rush inside the axon making it positive
5.)in the synapses there is mostly acetocholine present otherwise dopamine,serotonine also are neurotransmitter.(Neurotransmitters are packaged into synaptic vesicles clustered beneath the membrane on the presynaptic side of a synapse, and are released into the synaptic cleft).

1 Should be electrical still
#2 Production of neurotransmitter
#3 sensory neuron
#4 D, remember sodium has a positive charge
#5 dendrites