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WorksheetsSynapse and NMJ
Total questions: 8
Worksheet time: 4mins
Which of the following is an example of electrical synapse?
Acetylcholine-secreting motor neuron
A group of hormone-secreting neurons in the hypothalamus
Epinephrine-secreting cardiac sympathetic neurons
GABA-secreting neuron in the brain
Which of the following is the most common ionic basis of IPSP?
Decreased K+ efflux
Decreased Na+ influx
Increased Cl- influx
Increased Ca2+ influx
Where are non-peptide neurotransmitters synthesised?
(a)
Which of the following components of SNARE protein acts as Ca2+ receptor?
Synapsins
Synaptobrevin
Synaptotagmin
Syntaxins
Which of the following is the primary inhibitory neurotransmitter in the spinal cord?
GABA
Glutamate
Glycine
Nitric oxide
Which of the following triggers the termination of endplate potential?
Closure of the voltage-gated Na+ channels
Degradation of ACh at the motor endplate
Opening of the voltage-gated K+ channels
Removal of Ca2+ from sarcoplasm
Which of the following is the mode of action of botulinum toxin?
Blocking of nicotinic ACh receptors
Cleaving of SNARE proteins
Competitive antagonist of acetylcholinesterase
Inhibition voltage-gated Ca2+ channels
Which of the following may cause neuromuscular fatigue?
Depletion of ACh
Inhibition of acetylcholinesterase
Depletion of Ca2+ in sarcoplasmic reticulum
Accumulation of lactic acid
