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NEETZoologyLocomotion and Movement

Read the following statements and choose the follwoing option: 1. The junction between a motor neuron and the sarcolemma of the muscle fibre is called neuroventricular junction 2. Muscle contraction signal is initiated by CNS 3. Mechanism of muscle contraction is explained by fluid mosaic model. 4. A motor neuron alongwith the muscle fibres connected to it constitute a motor unit. 5. Increase in Ca++ level leads to t

Options

  1. AOnly 5 is correct
  2. BBoth 1 and 3 are correct
  3. CBoth 1 and 3 are incorrect
  4. DOnly 3 is correct

Correct answer

C. Both 1 and 3 are incorrect

Step-by-step solution

A motor neuron alongwith the muscle fibres connected to it constitute a motor unit.Muscle contraction is initiated by a signal sent by the central nervous system (CNS) via a motor neuron.

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