What does the kidney do with the elements that make up urine?

Which substances are completely retained in the body?

How does the body eliminate penicillin and streptomycin?

Which substance can be excreted by the kidneys in varying amounts?

What happens if a person does not consume salt?

What happens when a person consumes excess salt?

What is the structural unit of the kidney?

What is the head part of the nephron called? 

How many nephrons are in a single kidney approximately?

What surrounds the nephron’s glomerulus? 

 How many liters of blood pass through the kidneys per minute? 

What is the first stage of urine formation? 

What is the primary function of the kidneys? 

What proportion of the total blood volume is filtered by the kidneys? 

What structures connect the nephrons in the kidney? 

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