The main organ of the respiratory system. If you smoke, yours will get black.
What are the lungs?
This main organ of the circulatory system is about the size of your fist and pumps blood through your body.
What is your heart?
The main organ of the digestive system where food is mixed and stored.
That is the stomach?
The job of the excretory system is to keep the body's water balanced and remove this from your body.
What is waste?
This muscle at the bottom of your chest pulls down to let you inhale.
What is the diaphragm?
Blood picks up this gas, which all animals need to survive, from the lungs.
What is oxygen?
When you chew a bite of food, your tongue mixes the food with this liquid which helps break down food.
What is saliva?
The bean-shaped organs that filter your blood.
What are kidneys?
Air enters your nose through this tube that leads to the bronchial tubes.
What is the trachea?
The large blood vessels that carries blood away from the heart.
What is an artery?
The number of bones in an adult human.
What is 206?
Your body has a large and small one of these organs where food goes after it leaves the stomach.
What are intestines?
The muscular bag that holds urine.
What is the bladder?
The lungs hold millions of these tiny air sacs.
What are alveoli?
These large blood vessels carry blood to the heart.
What are veins?
The muscular tue that pushes food toward the stomach.
What is the esophagus?
A solid mass formed in kidneys due to low fluid intake and high intake of protein, sodium, soda, and other things.
What is a kidney stone?
Arteries branch into these tiny, thin blood vessels.
What are capillaries?
The chemicals in saliva that help break down starch in foods.
What are enzymes?
A dialysis machine does this.
What is clean the blood?