The Heart
This causes the muscles in your heart to contract.
What is electricity?
This transports food from your mouth to your stomach.
What is the esophagus?
These help animals breathe underwater.
What are gills?
The number of bones in an adult human.
What is 206?
The part of the eye that is coloured.
What is the iris?
This action makes your heart stronger.
What is exercise?
The acidic solution in your stomach that breaks down food.
What is chyme?
This muscle works with your lungs to help you breathe?
What is the diaphragm?
Your body has over 600 of these.
What are muscles?
The whole system that protects the body from disease.
What is the immune system?
Blood clots can slow blood flow and cause this.
What is a heart attack?
This part of the digestive system absorbs the needed chemicals from our food.
What is the small intestine?
The tiny air sacs, or passages, that your lungs are full of.
What are Alveoli?
These make your bones move.
What are muscles?
These cells fight off infection and can make germs explode.
What are white blood cells?
These are the muscles in your heart.
What are cardiac muscles?
The first part of the digestive system to break down food.
What is the mouth?
The best way to keep your lungs healthy.
What is daily exercise?
These connect bones to bones.
What are ligaments?
The nerves in this long body part connect with all the muscles in the body.
What is the spinal cord?
The two names for the chambers of the heart.
What are the atrium and the ventricle?
This "large" part of the digestive system prepares food for waste by absorbing water from the waste.
What is the large intestine?
These cause soot, tar, and poisonous chemicals to get into your lungs.
What are cigarettes?
These connect muscles to bones.
What are tendons?
The olfactory cortex is sensitive to these.
What are smells or odors?