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What is the ultimate cause for the difference between muscle and nerve cells?
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4. Tissues & Histology
Introduction to Muscle Tissue
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What are the three main components of a neuromuscular junction?
A
Dendrites, synaptic cleft, and muscle fiber membrane
B
Motor neuron axon terminal, synaptic vesicles, and muscle fiber membrane
C
Motor neuron cell body, synaptic cleft, and muscle fiber membrane
D
Motor neuron axon terminal, synaptic cleft, and muscle fiber membrane
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Understand the structure of a neuromuscular junction, which is the site where a motor neuron communicates with a muscle fiber to initiate muscle contraction.
Identify the key components involved in this communication process: the motor neuron axon terminal, the synaptic cleft, and the muscle fiber membrane.
The motor neuron axon terminal is the end of the motor neuron that releases neurotransmitters into the synaptic cleft.
The synaptic cleft is the small gap between the motor neuron axon terminal and the muscle fiber membrane where neurotransmitters are released.
The muscle fiber membrane, also known as the sarcolemma, contains receptors that bind to the neurotransmitters, leading to muscle contraction.
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