| Term | Definition |
|---|
| mantle | Specialized tissue formed by dorsal epithelium, secretes shell in molluscans |
| radula | Tongue like organ with use for feeding in molluscans, firm ribbon of teeth arranged in rows |
| ventral body wall | Muscles developed for locomotion in molluscans (called the head foot) in molluscans |
| odontophore | Cartilage like supportive structure that holds radula |
| baccular mass | Both the radula and the odontophore together |
| protractor muscle/retractor muscle | Moves the radula/odontophore in and outside the mouth |
| periostracum | The outer layer of a bivalve, consists of concholin |
| prismatic layer | The middle layer of a bivalve, large calcium crystals, bulk of mass |
| nacreous layer | Mother of pearl, the inner shiny layer of a bivalve |
| ctenidia | Ciliated molluscan gills housed in the mantle cavity |
| countercurrent exchange | Counterflow of fluids (blood and water) to maximize the exchange of unequally distributed materials |
Combine with other sets
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