Heart – pumps oxygenated and deoxygenated blood throughout the body.
Lungs – responsible for exchanging gases (O2/CO2) in order to facilitate respiration.
Brain – coordinates and regulates bodily functions via electrical signals through the nervous system.
Kidneys – filter waste from the bloodstream and release it from the body via urine production.
Liver – processes nutrients, stores energy, detoxifies toxic substances, and produces bile for digestion.
Gastrointestinal tract/Digestive System – breaks down food into usable components which can then be absorbed into the bloodstream.
Reproductive Organs: These organs produce hormones which regulate the sexual development, and also allow conception/birth.
This list does not include organs that are considered vital, such as the gallbladder or pancreas. Organs that aren’t considered essential but play a vital role in overall health.