alleryAt a neuromuscular junction, the neurotransmitter released is
- Acetylcholine
- Glycine
- Serotonin
- Dopamine
Show answer and solution
Correct answer: A. Acetylcholine
Motor neuron terminals release acetylcholine onto the muscle fibre.
NEET UG Neural Control and Coordination — practice questions — page 2
Explore 48 free Neural Control and Coordination questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.
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At a neuromuscular junction, the neurotransmitter released isRead the answer and worked solution →Acetylcholine at a neuromuscular junction is hydrolysed byRead the answer and worked solution →Neurotransmitter release follows influx of which ion into the axon terminal?Read the answer and worked solution →In electrical synapses, ionic currents pass between cells through pores calledRead the answer and worked solution →The sympathetic division emerges from which spinal cord regions?Read the answer and worked solution →The outflow of the parasympathetic division is described asRead the answer and worked solution →The longest nerve of the autonomic nervous system is theRead the answer and worked solution →Which effect on the eye is produced by the sympathetic system?Read the answer and worked solution →Stimulation of salivary gland secretion is a function of theRead the answer and worked solution →What effect does the sympathetic system have on peristalsis?Read the answer and worked solution →Circulating epinephrine during sympathetic activity makes the bronchiolesRead the answer and worked solution →The preganglionic neurotransmitter of both sympathetic and parasympathetic divisions isRead the answer and worked solution →At most effector organs, sympathetic postganglionic neurons releaseRead the answer and worked solution →Which part of the nervous system is called the second brain of the body?Read the answer and worked solution →Which brain structure acts as an integrator for autonomic functions?Read the answer and worked solution →The rest and digest response is promoted by theRead the answer and worked solution →Stimulation of the adrenal medulla releases into the bloodstreamRead the answer and worked solution →During sympathetic activity, blood flow to the gut and skin isRead the answer and worked solution →
Worked practice questions
Acetylcholine at a neuromuscular junction is hydrolysed by
- Monoamine oxidase
- Acetylcholinesterase
- Choline acetylase
- Adenylate cyclase
Show answer and solution
Correct answer: B. Acetylcholinesterase
Acetylcholinesterase in the synapse breaks acetylcholine down after it dissociates from receptors.
Neurotransmitter release follows influx of which ion into the axon terminal?
- Chloride ions
- Sodium ions
- Potassium ions
- Calcium ions
Show answer and solution
Correct answer: D. Calcium ions
Calcium entering the terminal drives vesicles to the membrane to release transmitter.
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