Human body
Human Body
The Human Body (pronunciation: /ˈhjuːmən ˈbɒdi/) is the structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. They ensure homeostasis and the viability of the human body.
Etymology
The term "Human" comes from the Latin "hūmānus", the adjective form of "homo", meaning "man". "Body" comes from the Old English "bodig", which originally meant "a person's trunk or torso".
Structure
The human body is organized into different levels, each increasing in complexity. The levels of organization are: cells, tissues, organs, organ systems, and the organism.
Cells
A cell is the basic unit of life. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life.
Tissues
A tissue is a group of cells that have a similar structure and act together to perform a specific function.
Organs
An organ is a group of tissues that perform a specific function or group of functions. Usually there is a main tissue and sporadic tissues. The main tissue is the one that is unique for the specific organ.
Organ Systems
An organ system is a group of organs that work together to perform a certain task. Common systems, such as those present in mammals and other animals, seen in human body systems, are those such as the circulatory system, the respiratory system, the nervous system, etc.
Functions
The human body has many functions such as digestion, respiration, reproduction, etc. These are maintained by the organ systems in the body.
See Also
External links
- Medical encyclopedia article on Human body
- Wikipedia's article - Human body
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski