Nervous System Review
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Transcript of Nervous System Review
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Nervous System ReviewCNS PNS Terms to know Neurons Action potential
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What does CNS stand for?
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What two structures make up the CNS?
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What are the three functions of the nervous system?
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Any change in the internal or external environment is considered a?
A.EvolutionB.StimulusC.Action potential
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The response dictated by the CNS activates ____________?
A.Nissle bodiesB.The nucleusC.A muscle or glandD.The brain
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PNS stands for?
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The neurons of the PNS are located___________?
A.Outside the spine and cranial cavitiesB.Inside the spine and cranial cavitiesC.In you neck only
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The two sub-divisions of the PNS are _______ & _______?
A.Dendrite and axonB.Axon and axon terminalC.Somatic and autonomicD.Sensory and motor
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The somatic sub-division of the motor division is responsible for what
type of control?A.Voluntary
B.Involuntary
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The sub-division of the PNS that carries impulses toward the CNS is called?A.Motor(efferent) divisionB.Sensory (afferent) divisionC.PNS
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Neuron carrying impulses toward the CNS is called?A.EfferentB.AfferentC.Interneuron
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Neuroglia are cells of the CNS that are grouped together and are also known as A.NervesB.Support CellsC.Schwann cellsD.Myelin sheath
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The two main functions of the neuron is ?A.Irritability and integrationB.Irritability and conductivityC.Irritability and translation
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A neuron is also known as a A.TranslatorB.TranscriberC.NerveD.Neuroglia
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The gap between neurons is known as the ?A.RiverB.SynapseC.SpaceD.Gray Matter
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• Label the diagram being sure to include – Dendrite
– Cell body
– Axon
– Axon terminal
– Node of ranvier
– Myelin sheath
– Schwann cell
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The ______________ carries messages Toward the cell body?A.Cell BodyB.DendriteC.AxonD.Axon Terminal
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The _______________ releases neurotransmitters in order to transfer the impulse to an adjacent neuronA.Cell BodyB.DendriteC.AxonD.Axon terminal
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The impulse is conducted along the __________ away from cell body, towards axon terminalsA.Cell BodyB.DendriteC.AxonD.Axon Terminal
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A neuron with a cell body that has many extensions is called a
A.UnipolarB.Multipolar
C.bipolar
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A neuron with fewer positive charges inside the cell then outside is said to be a
A.DepolarizedB.Resting membrane
C.Repolarization
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A cell is _____________ when Na⁺ rushes inside changing the inner charge from negative
to positiveA.DepolarizationB.Resting membraneC.Repolarization
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Neurons are _________________A.MitoticB.MeioticC.Amitotic
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The normal ionic conditions (↑Na⁺ outside, ↑K⁺ inside) are restored once the action
potential passes by the ?A.Sodium channels
B.Potassium channelsC.Sodium potassium exchange pump
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Describe the process of an action potential using the following terms:Na⁺Sodium channelK⁺Potassium channelSodium potassium exchange pumpResting membraneDepolarizationRepolarization