Organs

Definition

Organs are specialized structures composed of multiple tissues that perform specific functions necessary for an organism's survival. They work together in organ systems to maintain homeostasis and support life processes.

5 Must Know Facts For Your Next Test

1. Organs are made up of different tissue types, including epithelial, connective, muscle, and nervous tissues.
2. The human body has over 70 organs.
3. Each organ belongs to a larger organ system, such as the digestive or circulatory system.
4. Organs develop through a process called organogenesis during embryonic development.
5. Malfunctions or diseases of organs can significantly impact overall health and homeostasis.

Review Questions

Related terms

Tissue: A group of similar cells that work together to perform a specific function.

Organ System: A group of organs that work together to carry out complex functions within an organism.

Homeostasis:

The maintenance of a stable internal environment within an organism despite external changes.