Organ (biology) - Wikipedia
In a multicellular organism, an organ is a collection of tissues joined in a structural unit to serve a common function [1]. In the hierarchy of life, an organ lies between tissue and an organ …
Organ - Definition, Types and Examples | Biology Dictionary
2016年10月29日 · The human body has 78 different organs. The largest organ is the skin, while the smallest organ is the pineal gland, which produces the hormone melatonin. Some organs …
Organ | Definition, Types, & Facts | Britannica
Organ, in biology, a group of tissues in a living organism that have been adapted to perform a specific function. In higher animals, organs are grouped into organ systems; e.g., the …
Human body | Organs, Systems, Structure, Diagram, & Facts ...
4 天之前 · The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, …
Organ system - Wikipedia
An organ system is a biological system consisting of a group of organs that work together to perform one or more functions. [1] Each organ has a specialized role in an organism body, and …
The 11 Organ Systems of the Body and How They Work
2024年11月12日 · There are 11 major organ systems in the human body: Organ systems work together to keep the body in good health. For example, the circulatory and digestive systems …
Organ - Definition and Examples - Biology Online Dictionary
2023年7月21日 · Biology definition: An organ is a group of tissues that perform a specific function or group of functions. Typically, an organ would have the main tissue component that …
10.4: Human Organs and Organ Systems - Biology LibreTexts
2021年12月13日 · An organ is a collection of tissues joined in a structural unit to serve a common function. Organs exist in most multicellular organisms, including not only humans and other …
Organ System - Definition and Examples - Biology Dictionary
2019年3月27日 · An organ system is a group of organs that work together to perform a certain function in an organism’s body. Most animals and plants have organs, which are self …
organ - Students | Britannica Kids | Homework Help
In biology, an organ is a structure composed of a group of different tissues that work together to perform a specific function. Most multicellular organisms have one or more organs. The …