What is stroke volume ? What is its relation with cardiac output ?

Explanation

### Step-by-Step Solution:

1. **Definition of Stroke Volume**:
- Stroke volume is defined as the volume of blood that is ejected from the heart with each heartbeat or cardiac cycle.
- In a healthy adult, the stroke volume is approximately 70 milliliters (ml).

2. **Understanding Cardiac Output**:
- Cardiac output is the total volume of blood that is pumped by the heart in one minute.
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