Nervous & Digestive
This organ uses acid and powerful churning muscles to break down swallowed food.
What is the stomach?
This vital muscular organ pumps blood to every cell in your body.
What is the heart?
Consuming this specific mineral found in milk is essential for building strong, dense bones.
What is calcium?
This butterfly-shaped organ filters blood and creates urine to remove waste.
What is the kidney?
This master gland of the endocrine system controls growth and triggers other glands.
What is the pituitary gland?
The primary muscle responsible for breathing, located just below the lungs.
What is the diaphragm?
This flexible connective tissue cushions the spaces between your bones to prevent them from rubbing together.
What is cartilage?
Doing this for 30 minutes daily strengthens your heart, bones, and muscles.
What is exercising?
This largest part of the brain is responsible for higher-level thinking, memory, and voluntary muscle movement.
What is the cerebrum?
These microscopic, balloon-like air sacs are where oxygen and carbon dioxide are exchanged.
What are alveoli?
Getting these medical injections helps your immune system learn how to fight specific diseases safely.
What are vaccines?
This critical bedtime process allows the brain to clear waste and tissues to repair.
What is sleep?
The nervous system relies on these specialized cells to send electrical messages.
What are neurons?
The thick, muscular wall that divides the left and right sides of the heart.
What is the septum?
Tough bands of connective tissue that hold bones together at joints.
What are ligaments?
These white blood cells mature in the thymus and directly target infected or cancerous cells.
What are T-cells?
These specialized microscopic gaps allow neurons to pass electrical or chemical signals to each other.
What are synapses?
Tiny blood vessels with walls only one cell thick, allowing nutrients and waste to pass to body cells.
What are capillaries?
This large organ filters old blood cells and holds a reserve army of infection-fighting white blood cells.
What is the spleen?
The tube that carries urine from the bladder out of the body.
What is the urethra?