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Question
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.
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Solution
- Glomerulus
- Malpighian capsule
- Bowman's Capsule
- Proximal Convoluted Tubule
- Collecting Duct
- Loop of Henle and Collecting Duct
- Proximal and Distal Convoluted tubule
- The efferent (outgoing) arteriole is thinner than the afferent (incoming). This creates significant hydrostatic pressure in the glomerulus.
- Glomerulus
- Components of urine are water and solid waste (urea, creatinine, uric acid, etc.)
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RELATED QUESTIONS
Which of the following is/are part(s) of the tubular part of the nephron?
Identify the part of nephron correctly matched to its function.
A nephron consists of ______
The tubular filtrate is finally known as ______.
The blood flowing through the renal vein is oxygenated and normally does not contain 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.
Write down the functional activity of the following parts:
Vasa recta
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 |
Name the following:
Three types of fluids in different parts of a nephron.
Differentiate between Malpighian capsule and Loop of Henle (location).
