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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.
The capillary network formed by a terminal branch of the renal artery is the ______.
The loop of Henle and collecting ducts lie in the ____________ of the kidney.
The DCT of the nephron is important as it will ______
The proximal end of the renal tubule is a cup like structure called ______.
A nephron consists of ______
The blood flowing through the renal artery is oxygenated and contains a lot of nitrogenous waste.
The statement given below is false. Rewrite the correct form of the statement by changing the underlined word.
A pair of renal arteries branch off from the vena cava and enter the kidney.
Name the following:
Three types of fluids in different parts of a nephron.
The figure given below represents a kidney tubule in humans and its blood supply. Study the figure and answer the questions that follow. Write specific name and numbers shown in the diagram for each answer.
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- Name the part which consists of a knot - like mass of blood capillaries.
- What is the specific name for the combination of parts shown as 5 and 3?
- Name the part which collects the glomerular filtrate.
- Where is the most water reabsorbed?
- Name the part which collects urine in the diagram shown.
- Which part lies in the medulla of the kidney?
- Which of the above parts is involved in the process of tubular secretion?
- How is hydrostatic pressure created?
- Where does ultrafiltration take place?
- Name two important constituents of urine.
