In the diagram of a motor unit, what is represented by the part labelled X? Options: Axon, Neuromuscular synapse, Nucleus, Dendrite
IB SEHS 4.1 Neuromuscular

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Physical Ed, Science
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11th - 12th Grade
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1.
FLASHCARD QUESTION
Front
Back
Dendrite
2.
FLASHCARD QUESTION
Front
What is the name of the gap between two neurons?
Back
Synapse
3.
FLASHCARD QUESTION
Front
What part of the motor unit is responsible for carrying an impulse towards the cell body? Options: Axon, Dendrite, Motor end plate, Synapse
Back
Dendrite
4.
FLASHCARD QUESTION
Front
Which of the following are parts of a motor unit? Dendrite, cell body, nucleus and axon, Dendrite, cell body, tendon and muscle, Dendrite, cell body, cartilage and axon, Dendrite, cell body, ligament and muscle
Back
Dendrite, cell body, nucleus and axon
5.
FLASHCARD QUESTION
Front
What is the neurotransmitter involved in stimulating muscle contraction?
Back
Acetylcholine
6.
FLASHCARD QUESTION
Front
Which of the following statements is true about the sliding filament theory? During contraction the H zone remains the same length, A cross-bridge is formed by troponin and tropomysin attaching to one another, A nerve impulse causes an action potential to spread across the muscle, ATP is released around the filaments, stimulating the muscle to contract
Back
A nerve impulse causes an action potential to spread across the muscle
7.
FLASHCARD QUESTION
Front
According to the sliding filament theory, which of the following change in length during isotonic muscle contraction? I. A band II. H Zone III. Sarcomere
Back
H Zone and Sarcomere
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