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प्रश्न
Explain the structure of nephron.
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उत्तर
Each kidney consists of more than one million nephrons. Nephrons or uriniferous tubules are structural and functional units of the kidneys. Each nephron consists of Renal corpuscle or Malphigian corpuscle and renal tubule. The renal corpuscle consists of a cup-shaped structure called Bowman’s capsule containing a bunch of capillaries called glomerulus.
Blood enters the glomerular capillaries through afferent arterioles and leaves out through efferent arterioles. The Bowman’s capsule continues as the renal tubule which consists of three regions proximal convoluted tubule, U-shaped hairpin loop, the loop of Henle and the distal convoluted tubule. The distal convoluted tubule which opens into the collecting tubule. The
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संबंधित प्रश्न
State whether true or false. If false, correct the statement.
Glomerular filtrate consists of many substances like amino acids, vitamins, hormones, salts, glucose and other essential substances.
Explain the structure of kidney and the steps involved in the formation of urine
Assertion: Urea is excreted out through the kidneys.
Reason: Urea is a toxic substance.
Which of the following is/are part(s) of the tubular part of the nephron?
JG cells of Kidney secrete ______.
Given is a jumbled list of the parts of a certain body structure - Loop of Henle, Bowman’s capsule, distal convoluted tubule, glomerulus, proximal convoluted tubule.
- Name the structure to which the listed parts belong.
- Rearrange the parts in their proper sequence from the starting point to where they end.
The blood flowing through the renal artery is oxygenated and contains a lot of nitrogenous waste.
Write down the functional activity of the following parts:
Collecting duct
Match the items in Column I with those in Column II and write down the matching pairs.
| Column I | Column II | ||
| (a) | Bowman's capsule | (i) | Renal artery |
| (b) | Contains more CO2 and less urea | (ii) | Regulates amount of water excreted |
| (c) | Antidiuretic hormone | (iii) | Renal vein |
| (d) | Contains more urea | (iv) | Glomerulus |
Differentiate between Malpighian capsule and Loop of Henle (location).
