excretory system

A dialysis machine can be used to remove waste from a patient's blood. Which human body system works in a similar way?

• reproductive

• excretory

• nervous

• endocrine

The structure of the kidneys are primarily involved in

• transporting blood

• transporting oxygen

• removing wastes

• breaking down food

In humans, which substances are filtered out of the blood and then excreted in urine?

• water, carbon dioxide, and glucose

• urea, water, and salts

• water, urea, and red blood cells

• water, and red blood cells

The organ that regulates the concentration of water in the blood is the

• heart

• liver

• pancreas

• kidney

The structure that transports urine from the urinary bladder to the outside of the body is the

• urethra

• glomerulus

• nephron

• ureter

A major function of the bladder is

• transforming urine into a waste

• releasing urine into the bloodstream

• storing urine until it is eliminated

• filtering urine out of the blood

Which structure helps to keep body temperature constant?

• sweat gland

• nephron

• liver

• urinary bladder

There are about one million of these in each kidney.

• liver

• glands

• nephrons

• ovaries