All of the muscle fibers innervated by a single nerve fiber constitute a Blank______.Multiple choice question.neuromuscular junctionfascicletendonmotor unit
Question
All of the muscle fibers innervated by a single nerve fiber constitute a ______.
- neuromuscular junction
- fascicle
- tendon
- motor unit
Solution
The correct answer is motor unit.
A motor unit consists of a single motor neuron and all the muscle fibers it innervates. Here's a brief explanation of the options:
- Neuromuscular junction: The site where a motor neuron meets a muscle fiber.
- Fascicle: A bundle of muscle fibers surrounded by perimysium.
- Tendon: A connective tissue that attaches muscle to bone.
- Motor unit: The correct term for all muscle fibers innervated by a single nerve fiber.
Final Answer
motor unit
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