Name: Kidney as the Body Filter
Uploaded: 2019-07-19
Duration: 4 min 4 s
Description: The kidney is the waste manager of our body. Let us look inside the kidney and understand how this wondrous filtration system works. Watch the video now.

Question

The figure given below shows a part of a nephron.

Answer the questions that follow:

(i) In which region of the kidney is the above structure present?

(ii) Label the parts numbered 1 to 4.

(iii) What is the technical term for the process that occurs in part 3?

(iv) Why is fluid X not called urine? Justify your answer.

(v) Draw a neat, labelled diagram of the urinary system of man.

Accepted Answer

(i) The above structure is present in the renal cortex. The renal cortex is the outer part of the kidney. It contains the glomerulus and convoluted tubules.

(ii) The parts numbered from 1- 4 are as follows:

Afferent arteriole

Efferent arteriole

Glomerulus

Bowman's capsule

(iii) The technical term for the process that occurs in part 3 (Glomerulus) is called Ultrafiltration. In it, blood entering the glomerulus under great pressure is filtred.

(iv) The Bowman's capsule is found in the outer part of the kidney, the cortex. As a result, the filtrate leaving the Bowman's capsule is very similar to blood plasma in composition. Thus, the liquid found in the bowman's capsule is not urine.

(v) The urinary system of man.

Important Questions on Human Excretory System

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