How many times a red blood corpuscle will have to pass through the heart in its journey from hepatic artery?

Options

A. only once
B. two times
C. four times
D. several times

Answer

To determine how many times a red blood corpuscle (RBC) passes through the heart during its journey from the hepatic artery, we need to understand the circulation process in the human body.

### Step-by-Step Solution:

1. **Understanding the Hepatic Artery**:
- The hepatic artery carries oxygenated blood from the heart to the liver.

2. **Journey of the Red Blood Corpuscle**:
- When the RBC leaves the heart via the aorta, it travels through the hepatic artery to reach the liver.

3. **Blood Circulation Process**:
- In humans, the circulatory system operates on a double circulation model. This means that blood passes through the heart twice in one complete cycle.

4. **Pathway of Blood**:
- The RBC travels from the heart to the liver via the hepatic artery.
- After delivering oxygen to the liver, the RBC will return to the heart through the hepatic vein.

5. **Counting the Heart Passages**:
- The RBC passes through the heart once when it is pumped out via the aorta to the hepatic artery.
- After passing through the liver, it returns to the heart via the hepatic vein.
- Therefore, the RBC passes through the heart **twice**: once going to the liver and once returning from the liver.

6. **Conclusion**:
- The answer to the question is that a red blood corpuscle will have to pass through the heart **two times** in its journey from the hepatic artery.