Sarcoplasm

Sarcoplasm

The Sarcoplasm of a muscle fiber is comparable to the cytoplasm of other cells, but it houses unusually large amounts of "glycosomes" (granules of stored glycogen) and significant amounts of myoglobin, an oxygen binding protein. The calcium concentration in sarcoplasma is also a special element of the muscular fiber by means of which the contractions takes place and regulates.

Other than the fact that it contains mostly myofibrils its contents are otherwise comparable to those of the cytoplasm of other cells. It has a Golgi apparatus, near the nucleus, mitocondria just on the inside of the cytoplasmic membrane or sarcolemma, as well as a smooth endoplasmic reticulum organized in an extensive network.

External links

*
* [http://medical.merriam-webster.com/medical/sarcoplasm| Merriam-Webster Dictionary]
* [http://www.encyclopedia.com/doc/1O8-sarcoplasm.html| Sarcoplasm at Encyclopedia.com]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • sarcoplasm — noun Etymology: New Latin sarcoplasma Date: 1899 the cytoplasm of a striated muscle fiber • sarcoplasmic adjective …   New Collegiate Dictionary

  • sarcoplasm — n. [Gr. sarx, flesh; plasma, formed or molded] The undifferentiated protoplasm of a muscle cell; between the myofibrils …   Dictionary of invertebrate zoology

  • sarcoplasm — Cytoplasm of striated muscle fibre …   Dictionary of molecular biology

  • sarcoplasm — /sahr keuh plaz euhm/, n. Biol. the cytoplasm of a striated muscle fiber. [1895 1900; SARCO + PLASM] * * * …   Universalium

  • sarcoplasm — noun The interfibrillar cytoplasm of striated muscle …   Wiktionary

  • sarcoplasm — The nonfibrillar cytoplasm of a muscle fiber. [sarco + G. plasma, a thing formed] * * * sar·co·plasm sär kə .plaz əm n the cytoplasm of a striated muscle fiber compare MYOPLASM * * * n. the cytoplasm of muscle cells. * * * sar·co·plasm (sahrґko… …   Medical dictionary

  • sarcoplasm — [ sα:kə(ʊ)plaz(ə)m] noun Physiology the cytoplasm of striated muscle cells. Derivatives sarcoplasmic adjective Origin C19: from Gk sarx, sark flesh + plasma …   English new terms dictionary

  • sarcoplasm — sar·co·plasm …   English syllables

  • sarcoplasm — myoplasm; n. the cytoplasm of muscle cells …   The new mediacal dictionary

  • sarcoplasm — sar•co•plasm [[t]ˈsɑr kəˌplæz əm[/t]] n. hic (lab cbl) the cytoplasm of a striated muscle fiber • Etymology: 1895–1900 …   From formal English to slang

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”