CIRCULATORY
This organ pumps blood throughout the body.
(Heart)
These spongy organs bring oxygen into the body and remove carbon dioxide.
(Lungs)
This organ stores and digests food using acids and enzymes.
(Stomach)
This organ is the control center of the nervous system.
(Brain)
This hard, white structure makes up the skeleton.
(Bone)
This type of blood vessel carries oxygen-rich blood away from the heart.
(Artery)
This invisible, odorless gas is necessary for human survival.
(Oxygen)
This tube connects the throat to the stomach.
(Esophagus)
This structure in the brain controls breathing, heart rate, and blood pressure.
(Brain stem)
This group of bones supports and protects the chest.
(Ribs)
This type of muscle is only found in the heart.
(Cardiac muscle)
This sheet of muscle helps the lungs take in and release air.
(Diaphragm)
This coiled organ removes nutrients from food before it enters the bloodstream.
(Small intestine)
These thin fibers carry signals between the brain and other body parts.
(Nerves)
This bone structure protects the brain. (Skull)
(Skull)
This liquid moves through blood vessels and transports oxygen, nutrients, and waste.
(Blood)
This is the windpipe through which air travels in and out of the lungs.
(Trachea)
This organ filters blood and helps with digestion.
(Liver)
This column of bones provides the main support for the body.
(Spine)
This spongy material inside bones produces blood cells.
(Bone marrow)
This type of blood vessel carries blood back to the heart.
(Vein)
This gas is expelled from the body as a waste product of respiration.
(Carbon dioxide)
This part of the digestive system removes water from digested food before waste is excreted.
(Large intestine)
These tiny structures make up all parts of the body, including the nervous system.
(Cells)
This type of tissue allows the body to move by contracting and relaxing.
(Muscle)