AP Psych Neurons & Nervous System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Cell Body | Life support center of the neuron
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Dendrites | Branching extensions at the cell body. Receive messages from other neurons
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Axon | Long single extension of a neuron
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Myelin Sheath | insulate and speed up messages through neurons
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Terminal Branches | branched endings of an axon that transmit messages to other neurons
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Action Potential | + outside, - inside
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A neuron will fire if _________ | the depolarizing currents exceeds the threshold
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Refractory Period | After an action potential is fired, it pauses for a short period to recharge itself to fire.
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Synapse | junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron
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Agonist | Similar enough in structure to the neurotransmitter molecule that it mimics its effects on receiving neurons
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Antagonists | Structure similar enough to neurotransmitter to occupy its receptor and block its action
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Reuptake | Neurotransmitters in the synapse are reabsorbed into the sending neurons; applies brake on neurotransmitter action.
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Sensory Neurons (afferent) | carry incoming information from the sense receptors to the CNS
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Motor Neurons (efferent) | carry outgoing information from the CNS to muscles and glands
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interneurons | connect the neurons in the brain and spinal chords
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glial cells | provide physical and metabolic support to neurons; communicate with other cells
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Schwann cells | produce myelin in the PNS
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Oligodendrocytes | produce myelin in the CNS
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Astrocytes | provide nutrition to neurons
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Nerves | Made up of many axons
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CNS Consists of ____ & ____ | Brain, Spinal Chord
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PNS Consists of ____ & _____ | Autonomic Nervous System, Somatic Nervous System
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Autonomic Nervous System Consists of _____ & _____ | Parasympathetic Division (rest and digest) & Sympathetic Division (fight or flight)
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
abigailmy
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