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Physiology

Physiology Weeks 1-6

QuestionAnswer
When an action potential arrives at a synaptic knob, voltage-gated Ca++ channels open and allow extracellular ______ to diffuse inward? Ca++
At rest, a neuron’s membrane potential is main-tained at about what mV? -70 mV
Neurotransmitters diffuse across synaptic cleft and bind to what? postsynaptic membrane receptors
There is a slight ex-cess of positive ions on the outside of the membrane and a slight excess of negative ions on the inside of the membrane. What is this called? A membrane potential
What chemical is used by people with Parkinsons Disease that crosses the blood brain barrier and is used by the brain to form dopamin? Levodopa
Where are Schwanns cells found ? only in the PNS
What is the most common primary disease of the central nervous system and is a myelin disorder? MS
What's another name for Schwann Cells? Nodes of Ranvier
Axons conduct impulses away from the cell body True or false
What is the distal tips of axons form branches is called ? telodendria
Created by: Hamtaro247
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