Nervous System I
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
what is the central nervous system made of?
brain and spinal cord
What does the Somatic divison of the nervous system conrol?
Voluntary movement of the body
what is the peripheral system made of?
nerves that branch off from the spinal cord.
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
What is the sensory division of the PNS responsible for?
Sending impulses from the senses to the CNS
Two subdivisions of the Autonomic Nervous System--and the function of each
Sympathetic "Fight of Flight" Parasympathetic Division- "rest and digest"
Name FOUR Functional parts of a neuron
1- cell body (soma) 2- dendrites 3- axon 4- myelin sheaths 5- axon terminals 6- nodes of ranvier
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 are the 3 sections of the brain?
The cerebellum, cerebrum and the brain stem
Where is grey matter located in the spinal cord?
The core
The central nervous system is made of these organs
brain and spinal cord
What cell sends messages between two neurons?
Neurotransmitters
What are the 3 types of neurons?
Motor, sensory and relay neurons
What purpose is the purpose of the Myelin Sheath on an axon?
to speed up nerve impulses
What is the name of the space between dendrites and axon terminals?
Synaptic cleft
An action potential travels along this structure until it reaches the axon terminal
the Axon
What is the name of the folds of the brain?
Gyri
Why is white matter white?
Because of the white, fatty myelin sheaths
What do mechanoreceptors detect?
movement
Name all of the lobes of the brain
Parietal, temporal, frontal, occipital,