Neurons and electrical transmission

Question 1

what are neurons

Answer 1

nerve cells that communicate using electric and chemical signals

Question 2

what do sensory neurones do and how are their axons and dendrites shaped

Answer 2

they send messages from the pns to cns

long dendrites short axons

Question 3

what do relay neurones do and how are their axons and dendrites shaped

Answer 3

they connect sensory and motor neuroscience together as well at relay neurons

short dendrites short axons

Question 4

what do motor neurones do and how are their axons and dendrites shaped

Answer 4

carry messages from cns to effectors

long axons short dendrites

Question 5

what is the 
nucleus
dendrite
node of ranvier
axon
myelin sheath
terminal button

Answer 5

nucleus- contains genetic information

dendrite- carries electrical signals

node of ranvier- speed up signal

axon- carries signals away from soma

myelin sheath- made of fat and speeds up signal

terminal button- communicate with next neutrons in the chain

Question 6

how do neutrons communicate

Answer 6

message starts as an electrical signal

travels down neutron as action potential

when it reaches the synapse its transferred into a chemical signal

Question 7

when a neutron is at rest how is it charged

Answer 7

negatively

Question 8

what happens when a neutron fires?

Answer 8

the charge changes for a split second causing an action potential, creating an electrical impulse that travels down the neutron