| 词条 | Stylet (anatomy) |
| 释义 |
A stylet is a hard, sharp, anatomical structure found in some invertebrates. For example, the word stylet or stomatostyle is used for the primitive piercing mouthparts of some nematodes[1] and some nemerteans. In these groups the stylet is a hardened protrusible opening to the stomach. These stylets are adapted for the piercing of cell walls, and usually functions by providing the operative organism with access to the nutrients contained within the prey cell. The mouthparts of tardigrades, diptera and aphids[2] are also called stylets.[3] In octopuses, the stylets are internal, needle-like bent rods within the mantle, the vestigial remnants of an external shell.[4] References1. ^{{cite web|title=Digestive System|url=http://plpnemweb.ucdavis.edu/nemaplex/General/Anatomy/digestive.htm|work=Nemaplex- The Nematode-Plant Expert Information System|publisher=Department of Nematology, University of California, Davis|accessdate=26 November 2013}} {{wiktionary|stylet}}{{Animal-anatomy-stub}}2. ^{{citation |chapter=Plant viruses |author=W. Allen Miller, Steven A. Whitham |page=2311 |title=Fields Virology |edition=6th |year=2013 |editors= David M. Knipe, Peter Howley (eds) |publisher= Wolters Kluwer |ISBN=9781451105636}} 3. ^{{cite web|url=http://www.biology.ualberta.ca/mitchell.hp/Structure/modules.pdf|format=PDF|title=An Introduction to Insect Structure|website=Biology.ualberta.ca|accessdate=10 July 2018}} 4. ^{{cite web|url=http://digital.csic.es/bitstream/10261/124380/1/Stylet_vestigial_shell_%20Octopus.pdf|title=Stylet Size in *Octopus vulgaris* Hatchlings|website=http://digital.csic.es/|accessdate=17 November 2018}} 1 : Nematode anatomy |
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