This body system helps you breathe.
What is the respiratory system?
This organ pumps blood.
What is the heart?
The framework of the body is called this.
What is the skeleton?
Your body needs this nutrient for strong bones.
What is calcium?
This sense organ detects light.
What are the eyes?
This system pumps blood throughout the body.
What is the circulatory system?
These organs help you breathe by taking in oxygen.
What are the lungs?
Humans have this many bones as adults.
What is 206?
Drinking enough of this keeps the body hydrated.
What is water?
Humans have this many chambers in the heart.
What is 4?
This system breaks down food into nutrients.
What is the digestive system?
This organ filters waste from the blood and makes urine.
What are the kidneys?
Muscles pull on these to create movement.
What are bones?
Exercise mainly strengthens this organ.
What is the heart?
The smallest bones in the body are found here.
What is the ear?
This system includes the brain and spinal cord.
What is the nervous system?
This organ controls thoughts, memory, and movement.
What is the brain?
This bone protects the brain.
What is the skull (cranium)?
This vitamin is made when skin is exposed to sunlight.
What is Vitamin D?
Goosebumps happen because of tiny muscles attached to these.
What are hair follicles?
This system helps protect the body from germs and disease.
What is the immune system?
This largest organ protects the body from injury and germs.
What is the skin?
This is the strongest muscle in the body based on force.
What is the jaw muscle (masseter)?
This habit helps prevent the spread of germs.
What is washing your hands?
This body system works with muscles to help movement.
What is the skeletal system?