Altmann's granules

Altmann's granules
Alt·mann's granules 'ȯlt-mənz-, 'ält-.mänz- n pl minute granules in protoplasm once regarded as its ultimate formative units but now physically equated with mitochondria
Altmann Richard (1852-1900)
German histologist. Around 1890 Altmann advanced his theory that the fundamental units of protoplasm are granular particles whose existence he inferred from particles observed at the limits of resolution of the light microscope. They subsequently became identified with his name. The particles now are thought to be cellular organelles known as mitochondria whose morphology and cellular function have been worked out with the aid of the much greater resolving power of the electron microscope.

Medical dictionary. 2011.

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  • altmann's granules — ˈȯltmənz , ˈältˌmänz noun plural Usage: usually capitalized A Etymology: translation of German Altmannsche granula, after Richard Altmann died 1901 German histologist, their discoverer : minute granules in protoplasm once regarded as its… …   Useful english dictionary

  • Richard Altmann — (March 12, 1852 ndash; December 8, 1900) was a German pathologist and histologist (tissue researcher) from Deutsch Eylau in the Province of Prussia. He studied medicine in Greifswald, Königsberg, Marburg, and Giessen, and earned his doctorate at… …   Wikipedia

  • Richard Altmann — (12 mars 1852 8 décembre 1900) était un pathologiste et histologiste allemand, professeur d’anatomie à l’université de Leipzig. Il obtint son doctorat de médecine à l Université de Giessen en 1877. Altmann est connu pour son travail sur des… …   Wikipédia en Français

  • bioplast — bio·plast bī ō .plast n 1) ALTMANN S GRANULES 2) a functional unit of living protoplasm: CELL …   Medical dictionary

  • bioplast — ˈbīōˌplast noun ( s) Etymology: bi (II) + plast 1. : altmann s granules 2. : a functional unit of living protoplasm : cell …   Useful english dictionary

  • cytoblast — ˈ ̷ ̷ ̷ ̷ˌblast noun ( s) Etymology: German zytoblast, from zyt cyt + blast 1. : nucleus 2a 2. : altmann s granules 3 …   Useful english dictionary

  • plastidule — ˈplastəˌd(y)ül noun ( s) Etymology: International Scientific Vocabulary plastid + ule; originally formed as German plastidul 1. : a hypothetical ultimate unit of protoplasm : altmann s granules 2 …   Useful english dictionary

  • granule — 1. A grainlike particle; a granulation; a minute discrete mass. 2. A very small pill, usually gelatin or sugar coated, containing a drug to be given in a small dose. 3. A colony of the bacterium or …   Medical dictionary

  • stain — 1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and reagents is used to color the constituents of cells and tissues. For… …   Medical dictionary

  • Oocyte — Stripped human oocyte; granulosa cells that had surrounded this oocyte have been removed. Gray s subject #3 38 …   Wikipedia

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