How is an organ different from a tissue
Difference tissues and organs
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Medical and first-aid papers often use words that are difficult to understand when taken out of context or if you are unfamiliar with them. It could totally alter how much you understand if they don’t make sense in the piece.
The fundamental building materials of the body: cells, tissues, and organs, are here to assist you with the most basic of all anatomical terminology. They serve as the foundation for the entire body. We may move on to organ systems or get more complex, such as the nervous system, once you have these down.
The smallest unit of life is the cell. Consider a chicken egg to get a sense of what a cell looks like. It has an outer membrane (which is a hard shell in the case of an egg, but most cells aren’t); it’s filled with nutrient-rich fluid (egg whites vs cytoplasm in a cell); and it has a nucleus (egg yolk).
Levels of organisation an organism | cells | biology
Tissues are groups of cells that are linked. A tissue’s cells are not all the same, but they work together to perform particular tasks. And if a doctor is only interested in one type of cell, a sample of tissue removed for analysis under a microscope (biopsy) includes several different types of cells.
The tough, often fibrous tissue that holds the body’s structures together and provides support and elasticity is known as connective tissue. It can be found in almost every organ, and it makes up a significant portion of the skin, tendons, joints, ligaments, blood vessels, and muscles. Connective tissue has different characteristics and includes different types of cells depending on where it is located in the body.
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Basic biology. lesson 6: cells tissues and organs (gcse
We looked at the environment of the cell in detail in the previous unit; in this unit, we zoom out and look at how cells function together in multicellular species. Multicellular species have the advantage of being able to specialize their cells to perform specific functions. In this subject, we’ll look at how specialized cells in animals and plants come together to form tissues and organs.
In a multicellular organism, an organ is a series of tissues that are grouped together to perform a specific function. Each tissue in an organ is made up of specialized cells that are identical. The following diagram depicts the general relationship between organs, tissues, and cells.
The heart, of course, is an organ that performs a specific function: pumping blood across the body. We’ll return to the heart in a later section. The heart is made up of several tissues as an organ. In the diagram above, I’ve depicted three such tissues.
Tissue of Muscle: Muscle tissue is made up of muscle cells that have been specialized to be able to contract, allowing movement. The heart is made up of a lot of muscle tissue that contracts to provide the force needed to pump blood out.
Cells, tissues, organs, systems
The structural organization of the human body is multi-leveled. The chemical stage, which includes tiny building blocks like atoms, is the most basic. The smallest functional units of life are cells. Single cells occur in the simplest living organisms, but cells also exist at the tissue level in complex life forms like humans.
Tissues are collections of identical cells that serve the same purpose. Epithelial, muscle, connective, and nervous tissue are the four basic tissue types. Each tissue type serves a distinct purpose in the body:
An organ is a structure that is made up of at least two different types of tissue and serves a particular purpose in the body. The liver, stomach, brain, and blood are all separate organs with distinct functions. Each organ is a specialized functional core that is in charge of a specific body function.
Complex functions are possible at the organ level thanks to the specialized activities of different tissues. Most tissues have a variety of tissue types. The stomach, for example, is made up of smooth muscle tissue for churning movement and is innervated, but it also receives blood, which is a connective tissue.