brain and the nervous system pt.iii (nerves)

Question 1

what between and where do signals cross?

Answer 1

neurones at the synapse

Question 2

what make signals cross?

Answer 2

neurotransmitters

Question 3

what does electrical impulse trigger?

Answer 3

vesicles to move the synapse membrane

Question 4

what do the vesicles do after moving to synapse?

Answer 4

fuse with membrane, release neurotransmitters into synaptic cleft

Question 5

what do the neurotransmitters do after synaptic cleft?

Answer 5

moves across cleft and binds to receptors on other side

Question 6

when is the signal transmitted?

Answer 6

when receptors have enough neurotransmitters bound to them

Question 7

different types of neurons?

Answer 7

motor neuron, sensory neuron, interneuron

Question 8

motor neuron?

Answer 8

sends signals to muscles to tell to move

Question 9

sensory neuron?

Answer 9

sends signals from sense organs

Question 10

interneuron?

Answer 10

connects neurons to other neurons (only other neurons)

Question 11

path of nerve impulse?

Answer 11

stimulus –> receptor –> sensory neuron –> relay neuron and brain –> motor neuron –> effector –> response

Question 12

reflex?

Answer 12

involuntary and nearly instantaneous movement responding to stimulus

Question 13

reaction?

Answer 13

voluntary and intentional response, requires thought

Question 14

reflex arc?

Answer 14

stimulus –> motor –> sensory neuron –> processed by cns (brain) –> motor neuron –> effector –> response by effector

Question 15

what is a reflex arc the same as?

Answer 15

path of nerve impulse