The human body as well as that of other animals (Species) is highly structured into organs and tissues which serve specific functions. Tissue is the organizational level intermediate between cells and organs system which compose the whole organism. All the tissues and cell types defined in an animal organism are hierarchical structured and shall be fully described. o

  • Hierarchy: + -
  • name description synonyms
    anatomical site A defined structural or conceptional component of an organism [Daniel Wuttke].
    cardiovascular system The system of heart and blood vessels [Brenda].
    respiratory system A system of organs subserving the function of respiration and in air-breathing vertebrates consisting typically of the lungs and their nervous and circulatory supply and the channels by which these are continuous with the outer air [Brenda].
    hematological system The structures of the hematologic or hematopoietic system include the blood, blood vesels, and blood-forming organs (bone marrow, spleen, liver, lymph nodes, and thymus gland). The hematological system also plays an inportant role in hormone transport, the inflammotory and immune responses, temperature regulation, fluid-electrolyte balancem and acid-base balance [http://www.google.de/url?sa=t&rct=j&q=the%20structures%20of%20the%20hematologic%20or%20hematopoietic%20system%20include%20the%20blood%2C%20blood%20vesels%2C%20and%20blood-forming%20organs%20(bone%20marrow%2C%20spleen%2C%20liver%2C%20lymph%20nodes%2C%20and%20thymus%20gland).%20the%20hematological%20system%20also%20plays%20an%20inportant%20role%20in%20hormone%20transport%2C%20the%20inflammotory%20and%20immune%20responses%2C%20temperature%20regulation%2C%20fluid-electrolyte%20balancem%20and%20acid-base%20balance&source=web&cd=7&ved=0CF8QFjAG&url=http%3A%2F%2Fwww.reocities.com%2Fjtiongco_99_2000%2FMS%2Fms_lec5-1_hematologic_system.doc&ei=MdVQT9fNOsXV0QX_xfHrCw&usg=AFQjCNEUwaHxQc61N6EMZWYnMKlQ9IW8ug].
    lymphoreticular system The mononuclear phagocyte system is a part of the immune system that consists of the phagocytic cells located in reticular connective tissue. The cells are primarily monocytes and macrophages, and they accumulate in lymph nodes and the spleen. The Kupffer cells of the liver and tissue histiocytes are also part of the MPS [Wikipedia: http://en.wikipedia.org/wiki/Mononuclear_phagocyte_system].
    alimentary system The human gastrointestinal tract refers to the stomach and intestine, and sometimes to all the structures from the mouth to the anus. (The "digestive system" is a broader term that includes other structures, including the accessory organs of digestion) [Wikipedia: http://en.wikipedia.org/wiki/Human_gastrointestinal_tract].
    urogenital system The urinary system and genital system considered together [Brenda].
    endocrine system The endocrine system is the system of glands, each of which secretes a type of hormone directly into the bloodstream to regulate the body. The endocrine system is in contrast to the exocrine system, which secretes its chemicals using ducts. It derives from the Greek words "endo" meaning inside, within, and "crinis" for secrete. The endocrine system is an information signal system like the nervous system, yet its effects and mechanism are classifiably different. The endocrine system's effects are slow to initiate, and prolonged in their response, lasting from a few hours up to weeks. The nervous system sends information very quickly, and responses are generally short lived. Hormones are substances (chemical mediators) released from endocrine tissue into the bloodstream where they travel to target tissue and generate a response. Hormones regulate various human functions, including metabolism, growth and development, tissue function, and mood. The field of study dealing with the endocrine system and its disorders is endocrinology, a branch of internal medicine [Wikipedia: http://en.wikipedia.org/wiki/Endocrine_system].
    musculoskeletal system A musculoskeletal system (also known as the locomotor system) is an organ system that gives animals (including humans) the ability to move using the muscular and skeletal systems. The musculoskeletal system provides form, support, stability, and movement to the body [Wikipedia: http://en.wikipedia.org/wiki/Human_musculoskeletal_system].
    integument system The integumentary system is the organ system that protects the body from damage, comprising the skin and its appendages(including hair, scales, feathers, and nails). The integumentary system has a variety of functions; it may serve to waterproof, cushion, and protect the deeper tissues, excrete wastes, and regulate temperature, and is the attachment site for sensory receptors to detect pain, sensation, pressure, and temperature. In most terrestrial vertebrates with significant exposure to sunlight, the integumentary system also provides for vitamin D synthesis [Wikipedia: http://en.wikipedia.org/wiki/Integumentary_system]. integumentary system; integument
    nervous system The nervous system is essentially a biological information highway, and is responsible for controlling all the biological processes and movement in the body, and can also receive information and interpret it via electrical signals which are used in this nervous system. It consists of the Central Nervous System (CNS), essentially the processing area and the Peripheral Nervous System which detects and sends electrical impulses that are used in the nervous system [Brenda].
    immune system An immune system is a system of biological structures and processes within an organism that protects against disease. In order to function properly, an immune system must detect a wide variety of agents, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue [Wikipedia: http://en.wikipedia.org/wiki/Immune_system].
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