MICROANATOMY

Detailed explanation-1: -The neuromuscular junction (NMJ) is a synaptic connection between the terminal end of a motor nerve and a muscle (skeletal/ smooth/ cardiac). It is the site for the transmission of action potential from nerve to the muscle. It is also a site for many diseases and a site of action for many pharmacological drugs.

Detailed explanation-2: -The connection between a motor neuron axon terminal and a muscle fiber occurs at a neuromuscular junction site. This is a chemical synapse where a motor neuron transmits a signal to muscle fiber to initiate a muscle contraction.

Detailed explanation-3: -The area of the sarcolemma on the muscle fiber that interacts with the neuron is called the motor end plate. The end of the neuron’s axon is called the synaptic terminal, and it does not actually contact the motor end plate.

Detailed explanation-4: -The terminal region of the axon gives rise to very fine processes that run along skeletal muscle cells. Along these processes are specialized structures known as synapses. The particular synapse made between a spinal motor neuron and skeletal muscle cell is called the motor endplate because of its specific structure.

Detailed explanation-5: -Answer and Explanation: The gap between the axon terminal of a motor neuron and the sarcolemma of a skeletal muscle cell is known as the neuromuscular junction.