| contractile s. |
one which may be mechanically dilated, but which soon returns to its contracted condition; called also recurrent s.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| contractile v. |
an osmoregulatory organelle of protozoa and sponges that alternately fills with water extracted from the adjacent cytoplasm and then ejects the water to the outside; thus it acts as a pumping mechanism to remove excess water from the cell. Called also water expulsion vesicle.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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