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The afferent and efferent vessels are...

The afferent and efferent vessels are

A

Arterial in nature

B

Venous in nature

C

One is arterial and the other is venous

D

One is venous and the other is arterial

Text Solution

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The correct Answer is:
**Step-by-Step Text Solution:** 1. **Definition of Afferent and Efferent Vessels:** - Afferent vessels are those that carry blood towards a specific organ or structure, while efferent vessels carry blood away from that organ or structure. 2. **Afferent Arterioles:** - Afferent arterioles are small blood vessels that bring deoxygenated and urea-rich blood to the glomerulus of the kidney. This is where the process of ultrafiltration occurs, allowing for the filtration of blood to form urine. 3. **Efferent Arterioles:** - Efferent arterioles, on the other hand, are the vessels that drain blood away from the glomerulus. After the filtration process, the blood that is now filtered exits the glomerulus through these vessels. 4. **Function of Afferent and Efferent Vessels:** - The primary function of the afferent vessels is to supply blood for filtration, while the efferent vessels are responsible for carrying away the filtered blood from the glomerulus. 5. **Categorization:** - Both afferent and efferent vessels are categorized as arterioles, which are small branches of arteries. They play a crucial role in the renal system by regulating blood flow into and out of the kidneys.
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