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Nervous System

Teacher: Bridget
Horizontales
Division of efferent nervous system that is involuntary and conveys info to organs and glands
Cell body of a neuron
Self stimulating wave of depolarization
Summation that is caused by repeated stimulation from a single presynaptic axon in succession
Junction between neurons, that includes the axon of presynaptic neuron, dendrites of postsynaptic neuron, and space in between
Chemical message molecules released by vesicle in the presynaptic neuron
Grouping of nerve cells that is wrapped by epineurium
Sub threshold stimulus that won't start a new impulse but acts to lower the threshold so that the following stimuli might start an impulse
Division of the nervous system including the brain and spinal cord
Division of the autonomic nervous system that will increase effector activity
Division of the PNS consisting of nerves that input sensory info towards the CNS
Verticales
Cells of NS that phagocytize microorganisms and cell debri
The act of making a portion of a cell more positive on the inside by opening channels and increasing permeability
Fascia covering around individual neurons
Cells that insulate the neurons of the CNS
Cellular extension of neurons that are branched and conduct impulses away from cell body
Structure of a neuron including one axon and one dendrite
Sodium potassium pumps work to maintain the polarization of a neuron, meaning it is more _____________ on the inside
_______ conduction happens in myelinated neuronsin PNS when impulses jump from node to node between schwann cells
Cells that insulate neurons of the PNS