Which of the following represents the correct order of anatomical structures in the nephron?
a) glomerulus, proximal convoluted tubules, loop of henle, distal convoluted tubules
b) proximal convoluted tubules, loop of henle, distal convoluted tubules, glomerulus
c) glomerulus, distal convoluted tubules, loop of henle, proximal convoluted tubules
d) distal convoluted tubules, glomerulus, proximal convoluted tubules, loop of henle
e) glomerulus, loop of henle, proximal convoluted tubules, distal convoluted tubules

Option B

Explanation:

The structural and functional unit of kidney is nephrons. They are present in huge numbers in the kidney that helps in filtration of the blood in the body.

The anatomical structure of the nephron is made of different parts. The structure in the nephrons are in the order as follows.

The first is proximal convoluted tubule, loop of Henle and then distal convulated tubule and finally the glomerulus. These structures combinely helps in the purification of blood.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

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