The vessel leading blood (containing nitrogenous waste) into the Bowman's capsule is known as

Options

A. Renal vein
B. Renal artery
C. Efferent arteriole
D. Afferent arteriole

Answer

To answer the question "The vessel leading blood (containing nitrogenous waste) into the Bowman's capsule is known as," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of the Kidney**:
- The kidney is made up of functional units called nephrons, which are responsible for filtering blood and forming urine.

2. **Identifying the Bowman's Capsule**:
- The Bowman's capsule is a cup-like structure that encases a network of capillaries known as the glomerulus. This is where the filtration of blood occurs.

3. **Blood Supply to the Kidney**:
- Blood enters the kidney through the renal artery, which branches into smaller arterioles.

4. **Role of Afferent Arterioles**:
- The renal artery branches into smaller vessels called arterioles. The specific arterioles that lead directly into the Bowman's capsule are called afferent arterioles.

5. **Function of Afferent Arterioles**:
- Afferent arterioles carry blood containing nitrogenous waste to the Bowman's capsule. This blood is then filtered in the glomerulus.

6. **Conclusion**:
- Therefore, the vessel leading blood containing nitrogenous waste into the Bowman's capsule is known as the **afferent arteriole**.

### Final Answer:
The vessel leading blood (containing nitrogenous waste) into the Bowman's capsule is known as the **afferent arteriole**.

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