Nervous System
The nervous system is the bodies what?
Communication Network
Name the 2 types of matter in the body
Grey and White
How many parts to a neuron?
Four
When I am resting my insides are this
Negative
I am made of fat and cover the axon
Myelin
Name the 3 types of neurons
Sensory or Afferent, Motor or Efferent and inter
Grey matter is responsible for what?
Processing and decision making
This part of the neuron functions like an antennas
Dendrites
Help! I lost my Potassium, now my insides are this
negative
Signals cant travel straight because of me...they have to jump
Nodes of Ranvier
The afferent neurons do what?
Carry messages to the brain
What makes white matter white?
Myelin
this carries the nerve signal away from the body
Axon
When this moves out, I feel positive
Sodium
I am a gap between two neurons
Synapse
The interneurons are found where?
inside the brain and spinal cord
Where do we find grey matter?
Cell bodies, interneurons, synapses
This part contains the cell "headquarters"
Cell Bodies or Soma
If this isn't strong enough, I wont work
threshold
I am the special cells that serves as the lock looking for a key
Receptors
Describe the 3 step process of message travel between neurons
Afferent sends message to the brain from the body, interneuron makes a decision and send message back to the body via the efferent neuron.
What does white matter do?
Communication superhighway
Here is where you find your neurotransmitters
Axon Terminal
Name the steps that the nerve impulse travels
Rest, Threshold, depolarization, repolarization
WE are the two neurotransmitters
Acetylcholine and Norepinephrine