The correct term to fill in the blank is "twitch."

### Explanation:
1. **Twitch**: A twitch is the basic unit of contraction in a muscle, which is a response of a motor unit to a single stimulus. It is characterized by a brief, quick contraction followed by relaxation.
2. **Depolarization**: While this term relates to the change in electric charge of a muscle fiber that starts the contraction process, it does not refer to the contraction itself.
3. **Cramp**: A cramp refers to a prolonged contraction that is often uncomfortable and not a single contraction of a motor unit.
4. **Motor Unit**: A motor unit consists of a motor neuron and the muscle fibers it innervates, and it can indeed produce twitch contractions.

In summary, the complete sentence reads: "A muscle twitch is a single contraction of a motor unit."

Question

The correct term to fill in the blank is "twitch."

### Explanation:
1. **Twitch**: A twitch is the basic unit of contraction in a muscle, which is a response of a motor unit to a single stimulus. It is characterized by a brief, quick contraction followed by relaxation.
2. **Depolarization**: While this term relates to the change in electric charge of a muscle fiber that starts the contraction process, it does not refer to the contraction itself.
3. **Cramp**: A cramp refers to a prolonged contraction that is often uncomfortable and not a single contraction of a motor unit.
4. **Motor Unit**: A motor unit consists of a motor neuron and the muscle fibers it innervates, and it can indeed produce twitch contractions.

In summary, the complete sentence reads: "A muscle twitch is a single contraction of a motor unit."

Knowee AI · Accepted Answer

The correct term to fill in the blank is "twitch."

### Explanation:
1. **Twitch**: A twitch is the basic unit of contraction in a muscle, which is a response of a motor unit to a single stimulus. It is characterized by a brief, quick contraction followed by relaxation.
2. **Depolarization**: While this term relates to the change in electric charge of a muscle fiber that starts the contraction process, it does not refer to the contraction itself.
3. **Cramp**: A cramp refers to a prolonged contraction that is often uncomfortable and not a single contraction of a motor unit.
4. **Motor Unit**: A motor unit consists of a motor neuron and the muscle fibers it innervates, and it can indeed produce twitch contractions.

In summary, the complete sentence reads: "A muscle twitch is a single contraction of a motor unit."

A muscle Blank______ is a single contraction of a motor unit.Multiple choice question.ticdepolarizationcramptwitch

Question

A muscle Blank______ is a single contraction of a motor unit.

Solution

Explanation:

Similar Questions

Upgrade your grade with Knowee