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प्रश्न
Answer the following in detail.
Explain the structure of a nephron with the help of a diagram.
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उत्तर
The microscopic filtering unit of the kidney is called nephron or uriniferous tubule. Each nephron consists of a cup-shaped structure at one end called Bowman’s capsule. Inside the cup is a network of blood capillaries called a glomerulus. The Bowman’s capsule and the glomerulus together form the Malpighian body. The Bowman’s capsule extends into a long tubule. These tubules are surrounded by a network of renal capillaries. The urinary tubules of the nephrons in each kidney join to form a common tube called a ureter.
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संबंधित प्रश्न
Explain the process of formation of urine with suitable diagram
Put a tick mark (✓) against the most appropriate alternative in the following statement :
Filtration of excretory wastes from the blood occurs in:
Define the following:
Dialysis
Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form.
Medulla of kidney passes urine into urinary bladder.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Glomerular filtrate consists of many substances such as water, salts, glucose and white blood corpuscles.
Choose the correct option.
Tubular secretion does not take place in ______.
In which segment of the nephron most of the re-absorption of substances takes place?
During ultra:filtration, ____________ is unable to filter through the glomerular capillaries.
The composition of glomerular filtrate and urine is not same. Comment.
A large quantity of fluid is filtered every day by the nephrons in the kidneys. Only about 1% of it is excreted as urine. The remaining 99% of the filtrate ______.
