Organ (anatomy)

In biology, an organ (Latin: organum, "instrument, tool") is a group of tissues that perform a specific function or group of functions. Common animal organs include the heart, lungs, brain, eye, stomach, spleen, pancreas, kidneys, liver, intestines, skin, uterus, bladder, bone, etc. A group of related organs is an organ system.

Organelles are analogous sub-cellular structures.

Organ systems
Organ system – a system composed of organs working together to carry out a function.


 * Circulatory system
 * Digestive system
 * Endocrine system
 * Integumentary system
 * Lymphatic system
 * Muscular system
 * Nervous system
 * Reproductive system
 * Respiratory system
 * Skeletal system
 * Urinary system
 * Urinary system

Орган (анатомия) Organ (anatomeg) Organ Organ (Biologie) Órgano (biología) Organo Organe 기관 (생물) Organo Organ (anatomi) Líffærakerfi איבר Organas Орган Orgaan 器官 Narząd Órgão (anatomia) Organ (anatomi) Elin Organ 器官