| spheroplast |
(formerly also sphaeroplast) A microbial or plant cell from which most of the cell wall has been removed, usually by enzymic treatment. Strictly, in a spheroplast, some of the wall remains, while in a protoplast the wall has been completely removed. In practice, the two words are often used interchangeably. See protoplast.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E22.htm
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| sphere |
a round body whose surface is at all points the same distance from the center.
Ãâó: library.thinkquest.org/5579/glossary/glossary.html
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| sphincter |
A band of tissue that acts like a one-way valve, allowing substances in the body to flow in one direction.
Ãâó: www.ehealthmd.com/library/heartburn/HB_glossary.ht...
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| sphincter |
A ring-like band of muscle that constricts a passage or closes an opening, eg, the anal sphincter constricts to close the anus and relaxes when the animal is passing stool. The urethral sphincter closes the urinary bladder.
Ãâó: www.peteducation.com/dict_alpha_listing.cfm
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| sphincterotomy |
The cutting of the bladder sphincter muscle to eliminate spasticity and related voiding problems.
Ãâó: members.tripod.com/~cripkorner/glossary.html
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