| D008928 |
Mitochondria |
Semiautonomous, self-reproducing organelles that occur in the cytoplasm of all cells of most, but not all, eukaryotes. Each mitochondrion is surrounded by a double limiting membrane. The inner membrane is highly invaginated, and its projections are called cristae. Mitochondria are the sites of the reactions of oxidative phosphorylation, which result in the formation of ATP. They contain distinctive RIBOSOMES, transfer RNAs (RNA, TRANSFER); AMINO ACYL T RNA SYNTHETASES; and elongation and termination factors. Mitochondria depend upon genes within the nucleus of the cells in which they reside for many essential messenger RNAs (RNA, MESSENGER). Mitochondria are believed to have arisen from aerobic bacteria that established a symbiotic relationship with primitive protoeukaryotes. (King & Stansfield, A Dictionary of Genetics, 4th ed) |
Mitochondrial Contraction,Mitochondrion,Contraction, Mitochondrial,Contractions, Mitochondrial,Mitochondrial Contractions |
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| D003585 |
Cell Biology |
The study of the structure, behavior, growth, reproduction, and pathology of cells; and the function and chemistry of cellular components. |
Cellular Biology,Biologies, Cell,Biologies, Cellular,Biology, Cell,Biology, Cellular,Cell Biologies,Cellular Biologies |
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| D005088 |
Exocrine Glands |
Glands of external secretion that release its secretions to the body's cavities, organs, or surface, through a duct. |
Exocrine Gland,Gland, Exocrine,Glands, Exocrine |
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| D005853 |
Geriatrics |
The branch of medicine concerned with the physiological and pathological aspects of the aged, including the clinical problems of senescence and senility. |
Gerontology |
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| D006056 |
Golgi Apparatus |
A stack of flattened vesicles that functions in posttranslational processing and sorting of proteins, receiving them from the rough ENDOPLASMIC RETICULUM and directing them to secretory vesicles, LYSOSOMES, or the CELL MEMBRANE. The movement of proteins takes place by transfer vesicles that bud off from the rough endoplasmic reticulum or Golgi apparatus and fuse with the Golgi, lysosomes or cell membrane. (From Glick, Glossary of Biochemistry and Molecular Biology, 1990) |
Golgi Complex,Apparatus, Golgi,Complex, Golgi |
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| D006652 |
Histological Techniques |
Methods of preparing tissue for examination and study of the origin, structure, function, or pathology. |
Histologic Technic,Histologic Technics,Histologic Technique,Histologic Techniques,Histological Technics,Technic, Histologic,Technics, Histologic,Technique, Histologic,Techniques, Histologic,Histological Technic,Histological Technique,Technic, Histological,Technics, Histological,Technique, Histological,Techniques, Histological |
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| D006653 |
Histology |
The study of the structure of various TISSUES of organisms on a microscopic level. |
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| D014132 |
Trachea |
The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi. |
Tracheas |
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