Each kidney has nearly one million complex tubular structures called nephrons, which are the functional units. Each nephron has two parts – the glomerulus and the renal tubule. Glomerulus is a tuft of capillaries formed by the afferent arteriole – a fine branch of renal artery. Blood from the glomerulus is carried away by an efferent arteriole.
Assertion (A): Blood flow to and from the glomerulus occurs through different arterioles. Reason (R): The efferent arteriole brings blood to the glomerulus while the afferent arteriole carries blood away.
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