When heart beat is decreased than normal is called

Options

A. Bradicardia
B. Tachycardia
C. Hypocardia
D. Nicacardia

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used when the heart rate is decreased below normal levels.

2. **Identifying Normal Heart Rate**: A normal resting heart rate for adults typically ranges from 60 to 100 beats per minute.

3. **Defining Bradycardia**: Bradycardia is defined as a heart rate that is less than 60 beats per minute. It is the condition where the heart beats slower than normal.

4. **Symptoms of Bradycardia**: While symptoms may not always be present, they can manifest when the heart rate drops below 50 beats per minute.

5. **Causes of Bradycardia**: Bradycardia can result from disorders of the sinoatrial (SA) node or the atrioventricular (AV) node, which are critical components of the heart's electrical conduction system.

6. **Evaluating Other Options**:
- **Tachycardia**: This term refers to a heart rate that is faster than normal, making it an incorrect choice.
- **Hypocardia**: This refers to the downward displacement of the heart, which is not related to heart rate.
- **Mycocardia**: This is a medication used to treat high blood pressure, not a term related to heart rate.

7. **Conclusion**: The correct term for a decreased heart rate is "bradycardia."

**Final Answer**: Bradycardia

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