What is the junction between the sarcolemma of muscle fibre and the motor neuron called?

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Solution

Neuromuscular junction :
The sarcolemma is the outermost covering or the plasma membrane of a muscle cell.
This membrane possesses the quality of excitability due to which the muscle either contracts or relaxes.
In order to be excited, it must be associated with a nerve fibre or a neuron which provides the electrical impulse.
The junction between the sarcolemma of a muscle fibre and the motor neuron is called as Neuromuscular junction or NMJ.

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One of the following gives the correct sequence of the components in a reflex arc. This is :

(a) Receptors $\to$ Muscle $\to$ Sensory neuron $\to$ Motor neuron $\to$ Spinal cord

(b) Receptors $\to$ Motor neuron $\to$ Spinal cord $\to$ Sensory neuron $\to$ Muscle

(d) Receptors $\to$ Sensory neuron $\to$ Spinal cord $\to$ Motor neuron $\to$ Muscle

What is neuromuscular junction and it's skeletal muscle cell and motor neuron??

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