A) neuron
B) nephron
C) lungs
D) Schwanns cells
Correct Answer: B
Solution :
Kidney is a compact mass of extremely fine and coiled tube-like excretory tubules called uriniferous tubules or nephrons. Each uriniferous, tubule or nephron begins with Bowmans capsule, which contains a network of blood capillaries, the glomerulus connected with efferent arteriole on one side and efferent arteriole on the other. The Bowmans capsule is followed by a short and narrow neck part of nephron marked by ciliated cells in its epithelium. The rest of the nephron is called secretory tubule which is differentiated into proximal convoluted tubule, loop of Henie and distal convoluted tubule. Nuron is structural and functional unit of nervous system.
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