NEET BIOLOGY

ECOLOGY

EXCRETORY PRODUCTS AND THEIR ELIMINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The wider of the two arterioles is the ____
A
Efferent arteriole
B
Afferent arteriole
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Hint: The afferent arteriole is the arteriole that brings blood to the glomerulus. It is larger in diameter than the efferent arteriole . The efferent arteriole is the arteriole that carries blood away from the glomerulus. It is smaller in diameter than the afferent arteriole.

Detailed explanation-2: -The efferent arteriole carries blood away from the glomerulus. Because it has a smaller diameter than the afferent arteriole, it creates some resistance to blood flow, producing the back-up of blood in the glomerulus which creates higher pressure in the glomerular cavity.

Detailed explanation-3: -Answer and Explanation: The diameter of the afferent arteriole going into the glomerulus is larger than the efferent arteriole leaving the glomerulus in order to increase blood pressure to facilitate ultrafiltration.

Detailed explanation-4: -Afferent and efferent arterioles (21.5 ± 1.2 µm and 15.9 ± 1.2 µm diameter), recognized from vascular origins, lead into previously undescribed wider regions (43.2 ± 2.8 µm and 38.4 ± 4.9 µm diameter) we have termed vascular chambers (VCs) embedded in the mesangium of the vascular pole.

Detailed explanation-5: -The Efferent Arteriole aids in the return of oxygenated blood from the heart to the lungs, while the Afferent Arterioles aid in delivering deoxygenated blood from the lungs back into circulation.

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