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Definition
signals cells that communicate to the body common parts |
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(Body) filled with ER that makes enzymes needed for cell communication |
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Receiver of communication from other neurons |
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Cord like region that transmits signal to the end of the nerve |
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Definition
The end of the neuron that release neurotransmitters for cell communication |
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The space between neurons |
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what are the 5 parts of the neuron |
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Definition
some, dendrites, axon, myelin sheath, terminus, synapse |
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Definition
cells that support and protect neurons- made of liquids |
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What does the Presynaptic Neuron do? |
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Definition
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What does a Postsynaptic Neuron do? |
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Definition
The nerve RECEIVING the signal |
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what does a Afferent Nerve do? |
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Definition
Sensory from the BODY to the BRAIN |
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What does the Efferent Nerve do? |
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Definition
Sensory from the BRAIN to the BODY |
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Definition
Axon, Endoneurium, Perineurium, Epineurium |
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Term
what does the Endoneurium do? |
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Definition
ct that surround each axon, separates each axon so they don't interfere, also supplies nutrience and electriods |
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What does the Perineurium do? |
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Definition
Dense layer of cells that assists with diffusion of ions needed for action potential |
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Definition
protective layer of nerve around the cell |
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What is resting potential? |
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Definition
unstable state, waiting to communicate |
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Is sodium potential high or low inside the cell during resting potential? |
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Definition
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Is sodium potential high or low outside the cell during resting potential? |
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Definition
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Is potassium concentration high or low inside the cell during resting potential? |
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Definition
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What is action potential? |
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Definition
sodium potassium channels open up allowing ions to flow, message travels down neurons |
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what does a excitatory Neurotransmitter do? |
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Definition
helps reach threshold easier to produce active potential |
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What do inhibitory neurotransmitters do? |
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Definition
prevent reaching threshold |
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Term
what are the 4 stages of Neurotransmitters |
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Definition
Synthesis, Storage, Calcium enters, Releases transmitter binds |
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Term
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Definition
action with out involvement of brain |
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what does the sensory neuron do? |
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Definition
Sends signal to the interneuron |
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Term
what does the Interneuron do? |
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Definition
connects to the motor neuron and brain |
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what does the motor neuron do? |
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Definition
sends signal to the effector to make motion of reflex |
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what does the affector do? |
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Definition
signals the sensory neuron |
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Definition
muscle that make the action of reflex arc |
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Dura, Arachoid, Plamatter |
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Definition
Consentration of AXON and NEUROGLIA, Thick outer covering of spinal cord |
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Definition
consentration of NEURON BODIES, distributed on outside of brain and inside of spinal cord |
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what does the cerebrum do? |
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Definition
controls emotions, memory, and motor movements |
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Definition
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white matter connecting the two hemespheres |
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what does Motor Cortex do? |
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Definition
voluntary skeletory muscle control |
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Definition
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Definition
posterior part of the brain |
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what does the medulla work with? |
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Definition
involuntary body function |
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what does the temporal lobe work do? |
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Definition
transmits sensory info to the body |
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what does the cerebellum work with? |
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Definition
the posture and body movement |
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Definition
focuses light to the lens, protects eye |
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Definition
white part of the eye that connects to muscles |
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(colored part) controls amount of light that enters eye |
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Definition
black part of eye where light enters |
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Definition
focus light on the retina |
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Definition
neural layer of eye containing photorecepters |
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what vision does a rod do? |
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Definition
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what vision does a cone do? |
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Definition
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Left controls __________? |
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Definition
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What causes color blindness? |
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Definition
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Definition
focus in-front of the retina |
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Definition
focus behind of the retina |
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Definition
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Definition
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What does parasympathetic do? |
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Definition
rest to digest, relaxes heart rate |
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Definition
fight or flight, body response to stress, more air, pupils dilate |
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Definition
Bitter, salt, sour, sweet, umani |
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