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1.1.Dendrites conduct nerve impulses ___________ from the ce

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1.
1.Dendrites conduct nerve impulses ___________ from the cell body,while axons conduct nerve impules ____________ the cell body.
.
A.away from; towards
B.towards; away from
C.towards; towards
D.away from; away from
2.
2.An action potential is caused by
.
A.breakdown of glycogen to glucose.
B.tetrodotoxins.
C.a difference in electrical charge across a membrane
D.sliding filaments of actin and myosin/
3.
3.Chemoreceptors are involved in
.
A.sight.
B.taste and smell.
C.hearing
D.touch.
E.All of the above.
.
4.
4.The actor Michael J.Fox suffers from Parkinson’s Disease,which is thought to be caused by decreased production of what neurotransmitter?
.
A.acetylcholine
B.epinephrine
C.dopamine
D.serotonin
.
1.1.Dendrites conduct nerve impulses ___________ from the ce
BCBC.
1B.
树突传导神经冲动到细胞体,轴突传导神经冲动远离细胞体.
2.C
动作电位是产生的原因是跨膜的不同的电位.
3.B
哪项涉及化学感受器,B,味觉嗅觉.
4.C,帕金森缺乏哪种神经递质?答多巴胺