Tissue
Tissue
A tissue is made up of a group of cells that usually look similar to one another and come from the same region in a developing embryo. The group of cells that make up a tissue have physiological functions that work together in a coordinated way to support special functions. The special function of
a tissue is also influenced by the kind of material that surrounds the tissue and by communication among the cells of the tissue. Different kinds of tissue have different physical properties. Tissues may be hard (bone), soft (muscle), or even liquid (blood).
In the structural organization of the body, tissues are located between the cell and organ levels of organization. Individual cells are a lower level of organization. Tissues are made up of many individual cells. Groups of different kinds of tissues are organized together to form organs, which have special functions with characteristic shapes and functional properties.
There are four kinds of tissues based on differences in their anatomy and function: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Epithelial tissue is made of layers of cells that are joined together and may cover the surface of the body (epidermis of the skin), line spaces in the body (lining of the abdominal cavity) and hollow structures (lining of blood vessels), or form glands (sweat glands). Connective tissue is usually made of cells and extracellular fibers that hold structures together (tendons), protect them (cartilage), store energy (fat), or produce blood.
Muscular tissue is made of cells that are organized to shorten and produce force when they contract (smooth skeletal and cordine muscle). Nervous tissue is made of neurons and accessory cells. Neurons are the cells that carry information in the form of electric action potentials . Accessory cells protect and support the function of neurons.
see also Blood; Connective Tissue; Epithelium; Muscle; Nervous Systems; Neuron; Organ; Skin
Michael G. Scott
Bibliography
Tortora, Gerard J., and Sandra R. Grabowski. Principles of Anatomy and Physiology. New York: John Wiley & Sons, Inc., 2000.
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Assisting the victims of war: 'nations will learn to work together only by actually working together.' (United Nations Relief and Rehabilitation Administration)
Magazine article from: UN Chronicle; 12/1/1994; ; 700+ words
; ...years, establishing the United Nations Relief and Rehabilitation Administration (UNRRA). Its mandate...signed on behalf of the United States, spoke to his guests...Roosevelt on war relief and rehabilitation, as Director-General...
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Queen Noor Urges Congress to Provide Humanitarian Relief, Rehabilitation to Landmine Survivors
Newspaper article from: U.S. Newswire; 9/28/1999; 700+ words
; ...date in current Administration policy. Joining...humanitarian relief for victims...suggested that the United States declare...stockpiled in the United States. "It...by 2004. The United States could...42 African nations; and 17 nations...humanitarian relief, ...
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Pakistan needs US$5.2 billion for earthquake relief, reconstruction, and rehabilitation.
M2 Presswire; 11/16/2005; 700+ words
; ...earthquake relief, reconstruction, and rehabilitation(C)1994...report by the United Nations on early...equity across rehabilitation efforts...ensuring rehabilitation of vulnerable...Public Administration--US...
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UN: Bridging gap between relief, development crucial inin post-conflict rehabilitation, Committee hears.
M2 Presswire; 11/16/1999; 700+ words
; ...gap between relief, development...conflict rehabilitation, Committee...conflict rehabilitation, the Observer...Office of the United Nations High Commissioner...another on the United Nations Decade...rights in the administration of justice...
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Ethiopia Orders a Halt To Food Relief in North; Evacuation in War Zone Threatens Millions
Newspaper article from: The Washington Post; 4/7/1988; ; 700+ words
; ...all foreign relief workers to...Cross, the United Nations and Catholic...Relief and Rehabilitation Commission...Priestley, the United Nations representative...Relief and Rehabilitation Commission...take over administration of the entire...
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Spurgeon M. Keeny Sr., Adviser On International Relief, Dies
Newspaper article from: The Washington Post; 10/23/1988; 700+ words
; ...international relief and rehabilitation problems, died...American Relief Administration in the Soviet...returned to the United States in 1924...worked for the United Nations Relief and Rehabilitation Administration...
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U.N. control of relief aid limited.(NATION)
Newspaper article from: The Washington Times; 1/7/2005; 700+ words
; ...WASHINGTON TIMES Nations will continue...yesterday. The Bush administration, conscious of...called Tsunami Relief," one U.S...World Bank. The United States and most...yesterday that the United Nations will...donors that the United States assembled...term relief and ...
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Remarks following a briefing on Indian Ocean earthquake and tsunamis disaster relief and an exchange with reporters.(Week Ending Friday, January 14, 2005)(Interview)
Newspaper article from: Weekly Compilation of Presidential Documents; 1/17/2005; 700+ words
; ...and providing relief for the victims...efforts by the United States Government and the United States people...providing for rehabilitation to these affected...Government of the United States is committed...and the United Nations to assess the...what is this ...
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Itch to 'See the World' Led to Relief Work in China
Newspaper article from: The Washington Post; 7/13/2009; ; 662 words
; ...Schaler, 91, a relief worker with the United Nations Relief and Rehabilitation Administration in China in the late...U.N. Relief and Rehabilitation Administration, first...She returned to the United States for health reasons...
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GEORGE W. BUSH HOLDS MEDIA AVAILABILITY FOLLOWING BRIEFING ON TSUNAMI RELIEF
News Wire article from: Political Transcript Wire; 1/10/2005; 700+ words
; ...BRIEFING ON TSUNAMI RELIEF JANUARY 10...PRESIDENT OF THE UNITED STATES...efforts by the United States government and the United States people...providing for rehabilitation to these affected...and the United Nations to assess the...what is this administration going to ...
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United Nations Relief and Rehabilitation Administration
Book article from: The Columbia Encyclopedia, Sixth Edition
United Nations Relief and Rehabilitation Administration (UNRRA), organization founded...the funds were provided by the United States, and the three directors...Agriculture Organization , and the United Nations Children's Fund .
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Ellen S. Woodward
Encyclopedia entry from: Encyclopedia of World Biography
...director of work relief programs for...groups in the United States, she...Emergency Relief Administration, asked her to...meetings of the United Nations Relief and Rehabilitation Administration...adviser to the United States delegation...
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Herbert Henry Lehman
Encyclopedia entry from: Encyclopedia of World Biography
...an important role in the United Nations Relief and Rehabilitation Administration, of which he was appointed...problems of relief and rehabilitation raised by the war. It...specter of communism in the United States through his senatorial...
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Robert C. Weaver
Encyclopedia entry from: Encyclopedia of World Biography
...the DOI's Public Works Administration (PWA) achieved a fine...advisory roles with the United States Housing Authority...Union as a member of the United Nations Relief and Rehabilitation Administration's mission to the Ukraine...
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Foreign Aid
Book article from: The Oxford Companion to United States History
...assistance to nations suffering the...market. For the United States, giving...aid helped the United States to incorporate...with wartime relief and private...dominated United Nations Relief and Rehabilitation Administration). Foreign...
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