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Smriti Gurung

physiology 7-13

QuestionAnswer
ganglion group of neuron cell bodies outside the CNS
Multiple sclerosis (MS) Autoimmune demyelinating disease with eventual progressive accumulation of neurologic deficits
Where do action potentials occur? Node of Ranvier
What term describes how an action potential is propagated along an axon? Saltatory conduction
Conduction rate of electrical impulses with non-myelinated axons 1.0 m/s
Conduction rate of electrical impulses with myelinated axons 100 m/s
EPSP (excitatory post-synaptic potential) open Na+ gates on post-synaptic membrane; continues action potential
IPSP (inhibitory post-synaptic potential) CR channels (K+/Cl-) when open cause hyperpolarization- further from threshold; more negative
Where is the action potential initiated? Axon hillock
What receptor is used for ACh somatic muscles? Nicotinic receptors, they stimulate skeletal muscle contraciton
What receptor is used for ACh smooth and cardiac muscle as well as glands? Muscarinic receptors
antagonists drugs that block the function of a neurotransmitter
Created by: smritigrg1
 

 



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