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प्रश्न
Explain the term haemodialysis.
उत्तर
Haemodialysis
(1) Haemodialysis is a technique used to clean blood.
(2) When the kidneys are affected due to injury, infections or restricted blood flow, they are unable to filter out nitrogenous wastes from the blood. This results in the accumulation of wastes, a condition called kidney failure.
(3) A dialyser or dialysing machine is used to remove nitrogenous wastes from the blood.
(4) At one time, about 500 ml blood is passed through the dialyser. The purified blood is pumped back into the patient’s body.
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संबंधित प्रश्न
Match structures given in Column I with functions given in Column II.
| Column I | Column II | ||
| (i) | Stomata | (a) | Absorption of water |
| (ii) | Xylem | (b) | Transpiration |
| (iii) | Root hairs | (c) | Transport of food |
| (iv) | Phloem | (d) | Transport of water |
| (e) | Synthesis of carbohydrates |
Why is it necessary to excrete waste products?
State the exact location of the Loop of Henle.
Write the functions of Ureter
Write the functions of the Urinary bladder
Name the basic filtration unit present in the kidney.
Correct the following statements by changing the underlined words:
The normal pale yellow colour of the urine is due to the presence of the pigment Melanin.
Blood in the renal artery or renal vein (Which one has more urea ?)
Why do some people need to use a dialysis machine? What does the machine do?
Draw a neat labelled diagram of the human excretory system.
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1to 8 are as follows:
1. Afferent arteriole from renal artery
2. Efferent arteriole
3. Bowman's capsule
4. Glomerulus
5. Proximal convoluted tubule with blood capillaries
6. Distal convoluted tubule with blood capillaries
7. Collecting tubule
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Which structure contains the highest concentration of urea?
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1to 8 are as follows:
1. Afferent arteriole from renal artery
2. Efferent arteriole
3. Bowman's capsule
4. Glomerulus
5. Proximal convoluted tubule with blood capillaries
6. Distal convoluted tubule with blood capillaries
7. Collecting tubule
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Where is most water reabsorbed ?
Differentiate between:
The Renal artery and the Renal vein.
Name the Following
The term used for Bowman’s capsule and glomerulus together.
Give Technical Term:
The organ which filters out urea and uric acid from the bloodstream.
Complete the following sentence with appropriate word:
______ is the functional unit of kidney.
State the Location: Renal pyramids
Choose the correct option.
The minor calyx _______.
Choose the correct option.
The part of nephron which absorbs glucose and amino acid is ______.
The product of the process of deamination is ______.
