Respiratory
Circulatory
Digestive
Excretory
100

What organ allows us to breathe?

Lungs 

100

What organ pumps blood throughout the body?

Heart


100

Where does digestion begin?

Mouth

100

True or False: The main function of the excretory system is to remove waste from the body 

True

200

Air enters the body through the ______.

Nose/Mouth

200

True or False: The main function of the circulatory system is to transport blood, oxygen, and nutrients 

True

200

What carries food to the stomach?

Esophagus (Food pipe)

200

Which organs filter the blood?

Kidney

300

What connects the throat to the lungs?

Trachea (Wind Pipe)

300

What part pumps oxygen-rich blood to the body?

Left ventricle

300

What organ breaks down food using acids and enzymes?

Stomach

300

What is the tube that carries urine from the kidneys to the bladder?

Ureter

400

What are the tiny air sacs in the lungs called?

Alveoli

400

What part of blood fights germs and infections?

White Blood Cells

400

Where are most nutrients absorbed?

Small intestine

400

Where is urine stored before it leaves the body?

Bladder

500

The bronchi branch into smaller tubes called ______.

Bronchioles

500

What is the liquid part of the blood?

Plasma

500

What organ produces bile to help digest fats?

Liver

500

What happens if the kidneys stop working properly?

Wastes build up in the blood