MICROANATOMY

Detailed explanation-1: -EXPLANATION: The junction between a motor neuron and the sarcolemma of the muscle fibre is called the motor end plate . It is formed at the sites, where the terminal branches of the axon of a motor neuron contact with a muscle cell.

Detailed explanation-2: -The space within the primary and secondary clefts, located between the axon terminal and the postsynaptic sarcolemma, comprises the synaptic cleft.

Detailed explanation-3: -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-4: -Between the synaptic end bulbs of the neuron and the cell membrane of the muscle fiber (the sarcolemma) lies a space known as the synaptic cleft, which is the final component of the neuromuscular junction.

Detailed explanation-5: -The axon end knob represents the presynaptic part of the neuromuscular junction. It contains multiple mitochondria and synaptic vesicles where the transmitter acetylcholine is stored.