Nervous System
what does PNS stand for?
peripheral nervous system
what does CNS stand for?
Central Nervous System
The division of your peripheral nervous system that is made up of the nerves that control involuntary body responses and functions.
Autonomic nervous sysytem
Name the tiiiiiiny empty space between dendrites of one neuron and axon terminals of the connecting neuron
Synapse
To slow down or stop the firing of the consequential neuron.
Two subdivisions of the Autonomic Nervous System
Sympathetic and Parasympathetic Division
Parasympathetic NS
What structure functions like a highway and transmits nerve impulses from the body to the brain and from the brain to the body?
The spinal cord
What does a dendrite do?
Receives neurotransmitters from another neuron's axon terminal
What are the two types of signals/messages that neurons can send?
Chemical and electrical
The central nervous system is made of these organs
brain and spinal cord
What does an axon terminal hold inside small vessicles?
neurotransmitters
'Fight, Flight & Freeze' refers to which system?
Sympathetic NS
What purpose is the purpose of the Myelin Sheath on an axon?
to speed up nerve impulses
Neurons taking information back to your body are called what?
motor neurons/Efferent neurons
An action potential travels along this structure until it reaches the axon terminal
the Axon
What is the difference between an efferent and an afferent neuron?
Efferent: Exit the spinal cord
Afferent: Arrive at the spinal cord
What is the difference between a conscious and an unconscious reaction?
awareness/choice to perform the action versus completing the action without the brain being aware
Is the spinal reflex arc voluntary or involuntary?
involuntary
Name an excitatory neurotransmitter that is involved in learning?
Glutamate
The primary cell that builds all the structures of the nervous system
Name all structures of the entire nervous sytem
Brain, Spinal cord, and Nerves
The two divisions of the peripheral NS are:
The autonomic and somatic
What does the Somatic divison of the nervous system conrol?
Voluntary movement of the body
What structure/s is the peripheral system made of?
nerves that branch off from the spinal cord.