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15 Cards in this Set

  • Front
  • Back
Neuron
working unit of the nervous system
Dendrite
branch of neuron that receives messages and sends them to the cell body
Axon
branch of neuron that carries messages, or impulses, away from the cell body
Synapse
small space between neurons
Central Nervous System
contains the brain and spinal cord
Peripheral Nervous System
made up of all nerves outside the central nervous system
Cerebrum
divided into two hemispheres
KNOW:
senses
memory
thinking
Cerebellum
KNOW:
voluntary muscles
balance
muscle tone
Brain Stem
most important part of the brain
KNOW:
controls heartbeat
breathing
blood pressure
(involuntary muscles)
Reflex
automatic response to a stimulus
Cochlea
structure in the inner ear, shaped like a snail shell, contains fluid to vibrate, sending impulses to the brain by the auditory nerve
Retina
light sensitive tissue at the back of the eye,
Olfactory Cell
sensory recepters in the nasal passages that respond to gas molecules in the air and send inmpulses to the brain for the interpretation of odors
Taste Bud
sensory recepter in the mouth (tongue) respond to chemical stimuli
Hormone
Target Tissue
endocrine chemicals that are produced from glands directly into the bloodstream and that affect target tissues