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OtherNerve Impulse

Neuron StructureNeurogliaOrganization

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brain and spinal cord

Includes nerves extending from the brain

& spinal cord

Sub-division of motor nervous system;

involuntary control

Sub-division of the motor nervous system; voluntary control

Division of PNS carrying information from

environment to CNS

Type of neuroglia in CNS that has a immune

function

Type of neuroglia in PNS that forms the myelin

sheath

Type of CNS neuroglia that acts as a blood-brain barrier; connects neurons

to capillaries

Type of neuroglia that produce & circulate

cerebrospinal fluid in the CNS

Type of neuroglia in the CNS that forms myelin

sheath

long process connecting soma to terminals

Processes that gather/detect information from receptors or nearby

cells

secrete neurotransmitters

Involved in saltatory conduction in myelinated

axons

Location of hereditary information/instructions

for building protein

moves sodium & potassium ions against

their gradients

Nerve cell receives enough stimulation to

generate an action potential

Occurs when Na channels close and K channels

open following an action potential

Occurs when K ions try to reach their equilibrium

potential

Period of time when the neuron cannot be

stimulated following an action potential

type of neuron in the brain and spinal cord

(functional classification)

Type of impulse conduction where the

action potential “jumps” from node to node

- 70 mV; membrane is “polarized” w/ more + charges outside than

inside

Sensory neuron interneuron motor

neuron

Type of neuron with lots of dendritic processes

(structural classification)