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प्रश्न
Define the following:
Excretory organs
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उत्तर
During different metabolic activities taking place in our body, the body produces many substances of which some are useful and some are useless.
If retained in the body the unwanted substances may become poisonous and cause much harm and in severe cases, even death. The organs which remove these unwanted and toxic substances from the body are called excretory organs.
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संबंधित प्रश्न
Choose the correct answer:
Vitamin excreted through urine in mammals is ______________
Why excretion is necessary?
Explain the Term: Loop of Henle
Choose the Odd One Out:
Circle the odd one.
Where does facultative reabsorption of sodium ions and water take place?
The human kidneys are located on either side of the vertebral column at the level of ______.
The maximum amount of electrolytes and water (70-80%) from the glomerular filtrate is reabsorbed in which part of the nephron.
Kidneys are vital organs for survival. Several factors like infections, injury or restricted blood flow to kidneys reduce the activity of kidneys. This leads to the accumulation of poisonous wastes in the body, which can even lead to death. In case of kidney failure, an artificial kidney can be used. An artificial kidney is a device to remove waste products from the blood through dialysis.
i. a. Name the artery that brings oxygenated blood to the kidney.
b. Name the cluster of the thin-walled blood capillaries present in the Bowman's capsule.
ii. In the human excretory system, name the organ which stores urine. Is this organ under hormonal control or nervous control?
iii. List two major steps involved in the formation of urine and state in brief their functions.
OR
iii. In which part of the nephron does selective reabsorption take place? List the factors which the amount of water reabsorbed depends on.
RAAS is regulatory mechanism osmoregulation. It includes ______ group of hormones.
