Structure of Kidney
Structure of Kidney
Internal Structure of a Kidney:
Each kidney is enclosed in a thin, fibrous covering called the capsule. A renal artery brings blood into the kidney, along with nitrogenous waste materials. After filtration in the kidney, the purified blood leaves the kidney through a renal vein. Two distinct regions can be seen in the section of a kidney:
The hollow space from where the ureter leaves the kidney is called the pelvis. Each kidney is made up of numerous (about one million) coiled excretory tubules, known as nephrons, and collecting ducts associated with tiny blood vessels. A nephron is the structural and functional unit of a kidney, having three functions— filtration, re-absorption and secretion. A cluster of thin-walled blood capillaries remains associated with the cup-shaped end of each nephron tubule. These capillaries bring blood from the body to the nephron for filtration. The network of capillaries spreads over the nephron tubules also. These capillaries finally carry purified blood to the body.
Internal Structure of Kidney
Which of the following are correct ? (a) Kidney work in pairs, but they are so efficient that even if one gets damaged, the person can still lead a healthy life . (b) The kidneys are two bean- shaped organs in the urinary system. (c) They help the body to pass waste as urine. | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) Kidneys help the body to pass waste as urine. (b) Kidneys also help filter blood before sending it back to the Heart. (c) The kidney perform many crucial functions, including :maintaining overall fluid balance | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) After filtration in the kidney, the purified blood leaves the kidney through a renal vein. (b) The kidney consists of an outer, dark, granular cortex and an inner, lighter medulla . (c) The capillaries finally carry purified blood to the body. | |||
| Right Option : D | |||
| View Explanation | |||
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About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
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