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NEETZoologyLocomotion and Movement

What happens when a neural signal reaches the neuromuscular junction?

Options

  1. ACalcium ions are released into the sarcoplasm
  2. BCross-bridge formation between actin and myosin
  3. CRelease of neurotransmitter acetyl choline
  4. DRelaxation of the muscle

Correct answer

C. Release of neurotransmitter acetyl choline

Step-by-step solution

The HMM component consists of the head and short arm of a meromyosin. The cross arm in the HMM component refers to the head and short arm projecting outwards at regular distance and angle from each other from the surface of a polymerised myosin filament. Muscle contraction is initiated by a signal sent by the central nervous system (CNS) via a motor neuron.The junction between a motor neuron and the sarcolemma of the muscle fibre is called the neuromuscular junction or motor-end plate. When a neural signal reaches

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