Excretion and Excretory System in Human Beings

Where is the renal cortex located in the kidney?

The organs A of a person have been damaged completely due to which too much of a poisonous waste material B has started accumulating in his blood, making it dirty. In order to save this person’s life, the blood from an artery in the person’s arm is made to flow into long tubes made of substance E which are kept in a coiled form in a tank containing solution F. This solution contains three materials G, H and I in similar proportions to those in normal blood. As the person’s blood passes through long tubes of substance E, most of the wastes present in it go into the solution. The clean blood is then put back into a vein in the arm of the person for the process of circulation.

Identify the organs A.

The blood is thicker in _____ arterioles as compared to efferent arterioles.

Which of the following animal contain kidney like human being?

Kidneys in human beings are the parts of a system that helps in

_____ is the cup-shaped structure in nephron. (Glomerulus/Bowman capsule)

The functional unit of the kidney is called _____.

Write 'true' or 'false'. If false, write the correct statement.

The kidneys excrete proteins

The process of filtration of blood takes place in the glomerulus.

Millions of small renal tubules inside the kidney are called nephrons.

Urine is collected in the urethra.

Kidneys are the main excretory organs of all vertebrates.

The filtration of wastes from the blood occurs in the 

Urine passes into the urinary bladder through the  

The Bowman's capsule is a part of the 

Match the following.

Draw the structure of a nephron. Explain its role in urine formation.

Blood enters a kidney through a _____.

The _____ is a network of capillaries within the cup of the Bowman's Capsule.

The kidneys consist of many filtering units called _____.