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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.)
RELATED QUESTIONS
Identify the CORRECT combinations in the given table.
| Part of nephron | Location | Function | |
| i. | Malpighian body | Cortex | Filtering blood |
| ii. | Proximal convoluted tubule | Cortex | Absorption of useful substances |
| iii. | Distal convoluted tubule | Only Medulla | Absorption of urea by action of ADH |
| iv. | Collecting duct | Either Cortex or Medulla | Collection of urine |
Structural unit of kidney are called ______.
The DCT of the nephron is important as it will ______
The proximal end of the renal tubule is a cup like structure called ______.
Given is a jumbled list of the parts of a certain body structure - Loop of Henle, Bowman's capsule, distal convoluted tubule, glomerulus, proximal convoluted tubule.
- Name the structure to which the listed parts belong.
- sequence from the starting point to where they end.
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.
Write down the functional activity of the following parts:
Collecting duct
Name the following:
Three types of fluids in different parts of a nephron.
Differentiate between Malpighian capsule and Loop of Henle (location).
