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- Tissues are formed from cells that have similar structures and functions. Organs are formed from a variety of tissues, and they exhibit more complex functions necessary for life.
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Most organs contain all four tissue types. The layered walls of the small intestine provide a good example of how tissues form an organ. The inside of the intestine is lined by epithelial cells, some of which secrete hormones or digestive enzymes and others of which absorb nutrients.
Apr 27, 2018 · Groups of cells organized together for a specific function form tissues. There are four basic types of tissue in the human body: epithelial, muscle, nerve and connective. Epithelial tissue covers the exterior of the body as well as the linings of the organs and cavities of the body.
- Melissa Mayer
Feb 9, 2023 · Here to help you with the most basic of all anatomical terms are the foundational building materials of the body: cells, tissues, and organs. These are the basis for the entire body. Once you have these down, we can move on to organ systems or get more specific, like the nervous system.
Tissues are related cells that are joined together. The cells in a tissue are not identical, but they work together to accomplish specific functions. For example, muscle tissue has muscle cells, which contract to make the muscle move.
- Alexandra Villa-Forte
- 389 min
5 days ago · These four basic cell types, together with their extracellular materials, form the fundamental tissues of the human body: epithelial tissues, which cover the body’s surface and line the internal organs, body cavities, and passageways. muscle tissues, which are capable of contraction and form the body’s musculature.
- The Editors of Encyclopaedia Britannica
- Chemically, the human body consists mainly of water and organic compounds—i.e., lipids, proteins, carbohydrates, and nucleic acids. The human body...
- The four main types of tissue in the human body are epithelial, muscle, nerve, and connective.
- The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory sy...
Nov 3, 2023 · The human body is a biological machine made of body systems; groups of organs that work together to produce and sustain life. Sometimes we get lost while studying about cells and molecules and can’t see the forest for the trees. It can be helpful to step back and look at the bigger anatomical picture.
Dec 13, 2021 · 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 animals but also plants. In single-celled organisms such as bacteria, the functional equivalent of an organ is an organelle.
