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What two body parts and one system make up the The Peripheral System?
Cranial & Spinal Nerves, Visceral Afferent, Automatic Nervous System
What are the two groups of neurons called in the Nervous System called?
Somatic Neurons and Autonomic Neurons
What are examples of involuntary activities?
process that occurs in the viscera or the blood vessels, the glands, all the unconscious activities
What are the three different ways a neurons can travel?
efferent, afferent, both(meaning a mix of afferent and efferent)
conduct impulses away from the cell body or from the central nervous system; think eeeeehh! I'm scared and I'm running away!
conduct impulses toward the neuron cell body or toward the central nervous system; think "I want Affection, so I coming to you!"
What is the myelin's purpose?
lines nerves fibers to protect and insulate; helps transmission of electrical current carrying data from on nerve cell to the next so it can speed it up.
What is the Nodes of Ranvier's Purpose?
junctions where the nerve process is exposed, increase velocity of nerve impulses
What happens to the myeline on the axon as a child learns a skill.
the myelin will form to help them accomplish that skill faster and faster so the nerve with learn how to accomplish that task
What happens to the myeline if a person gets Multiple Sclerosis?
The myelin gets damaged and depending on where the damage is, a person will have certain problems and lose the speed different skills
What are Synapes?
the space between neurons in a chain, neurons will start linking together to form chains
What happens as the synaptic cleft hooks onto the next neuron?
it will send forth vesicles releasing neurotransmitters to continue sending message from one nerve to next nerve
What happens when all the nerves have connected together?
a group of bundle of axons and/or dendrites from numerous neurons form nerves
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