Respiratory
This is the main muscle under the lungs that contracts to let you inhale and relaxes to let you exhale.
What is the diaphragm?
The hollow, muscular organ that acts as the pump for the entire circulatory system.
What is the heart?
The long tube that food travels down from the pharynx to the stomach.
What is the esophagus?
This organelle is the "brain" or control center of the cell and contains the genetic material (DNA).
What is the nucleus?
This gas is taken in by the body during inhalation to keep our cells alive.
What is oxygen?
Blood vessels that carry oxygen-rich blood away from the heart to the rest of the body.
What are the arteries?
This muscular organ mixes food with gastric acids to begin breaking down proteins.
What is the stomach?
This rigid outer layer is found in plant cells but not in animal cells, providing support and protection.
What is the cell wall?
Another name for the windpipe, which carries air down toward the lungs.
What is trachea?
Blood vessels that carry oxygen-poor blood back to the heart from the body.
Most absorption of nutrients into the bloodstream happens in this very long, coiled organ.
What is the small intestine?
This jelly-like substance fills the cell and holds the organelles in place.
What is the cytoplasm?
This structure, also known as the voice box, is found at the top of the windpipe
What is the larynx?
These cells in the blood carry oxygen from the lungs to the body's cells.
What are red blood cells?
This organ absorbs water from undigested food and creates solid waste.
What is the large intestine?
These organelles, found in plant cells, use sunlight to make food through a process called photosynthesis.
What are the chloroplasts?
This is the waste gas that is carried by the blood to the lungs and breathed out during exhalation.
What is carbon dioxide?
These are pieces of cells that help you fight an infection when you have a cut or injury.
What are white blood cells?
This substance in your mouth begins the chemical breakdown of starches (carbohydrates).
What is saliva?
This large, membrane-bound sac in plant cells stores water, food, and waste.
What is the vacuole?