Biology:Hyaline shield
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The hyaline shield is a part of the radula in many kinds of molluscs. It serves as an attachment point for the muscles that retract the radula, and is thus located on the upper surface of the radula, arching backwards into the mouth. This retraction fires any food particles backwards into the mouth.[1]
The hyaline shield is constructed from chitin.[1]
The features is present in most radula-bearing molluscan groups, including the cephalopods[1] and the chitons.[2]
References
- ↑ 1.0 1.1 1.2 Messenger, J. B.; Young, J. Z. (1999). "The Radular Apparatus of Cephalopods". Philosophical Transactions: Biological Sciences 354 (1380): 161–182. doi:10.1098/rstb.1999.0369.
- ↑ Shaw, JA; Macey, DJ; Brooker, LR; Clode, PL (2010). "Tooth use and wear in three iron-biomineralizing mollusc species". The Biological Bulletin 218 (2): 132–44. doi:10.1086/bblv218n2p132. PMID 20413790.
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