Question

question 36
the space between an axon and the muscle fiber it innervates is referred to as the
a axial space
b synaptic cleft
c motor cleft
d motor end plate

Explanation:

• Axial space: This term is not relevant in the context of the space between an axon and a muscle fiber.
• Synaptic cleft: In a neuromuscular junction (where a motor neuron innervates a muscle fiber), the space between the axon terminal (of the motor neuron) and the muscle fiber (motor end - plate) is called the synaptic cleft. Neurotransmitters are released into this cleft to transmit the signal from the neuron to the muscle.
• Motor cleft: This is not a standard anatomical or physiological term for the space in question.
• Motor end plate: The motor end plate is the specialized region of the muscle fiber membrane that interacts with the axon terminal, not the space between them.

Answer:

B. synaptic cleft