Anatomy
This organ is the largest in the human body by surface area and serves as a protective barrier.
Skin
This system is responsible for transporting blood, nutrients, and waste throughout the body.
Circulatory system
This organ filters toxins from the blood and produces bile for digestion.
Liver
These tiny air sacs in the lungs are responsible for gas exchange.
Alveoli
This type of blood cell is crucial for immune defense against infections.
White blood cell
This gland releases melatonin, a hormone that regulates sleep cycles.
Pineal gland
This structure connects muscles to bones, allowing for movement.
Tendon
This process occurs in the mitochondria and provides energy to cells in the form of ATP.
Cellular respiration
This muscle contracts and expands to help you breathe by moving air in and out of the lungs.
Diaphragm
This part of the brain is responsible for balance and coordination.
Cerebellum
This type of muscle is involuntary and is found in organs such as the stomach and intestines.
Smooth muscle
This hormone, produced by the adrenal glands, helps the body respond to stress.
These small structures, found in cells, contain enzymes that digest cellular waste.
Lysosomes
The process of maintaining a stable internal environment is known by this term.
Homeostasis
This kidney-produced hormone stimulates red blood cell production in bone marrow.
Erythropoietin