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Mitotic cell division enables sexually reproducing organisms to develop from the one-celled zygote, which itself is produced by fusion of two gametes, each having been produced by meiotic cell division. [5] [6] After growth from the zygote to the adult, cell division by mitosis allows for continual construction and repair of the organism. [7]
Light micrograph of a moss's leaf cells at 400X magnification. The following outline is provided as an overview of and topical guide to cell biology: . Cell biology – A branch of biology that includes study of cells regarding their physiological properties, structure, and function; the organelles they contain; interactions with their environment; and their life cycle, division, and death.
Cell division generally occurs by a complex, carefully structured sequence of events involving the reorganization of the parent cell's internal contents, the physical cleavage of the cytoplasm and plasma membrane, and the even distribution of contents between the two resulting cells, so that each ultimately contains approximately half of the ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
As the AMA decided in April 1960, the Current Medical Terminology (CMT) handbook was first published in June 1962 – 1963 to standardize terminology of the Standard Nomenclature of Diseases and Operations (SNDO) and International Classification of Diseases (ICD), and for the analysis of patient records, and was aided by an IBM computer. [22]
The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.
In cases of short duration, there may be small blisters, while in long-term cases the skin may become thickened. [149] The area of skin involved can vary from small to the entire body. [149] [150] Diagnosis – Medical diagnosis (abbreviated Dx [151] or D S) is the process of determining which disease or condition explains a person's symptoms ...
Anatomy is the study of the structure and organization of living organisms, from the microscopic level of cells and tissues to the macroscopic level of organs and systems. Anatomical knowledge is important in physiology because the structure and function of an organism are often dictated by one another.