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lophophore |
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lophophore [′läf·ə‚fȯr] (invertebrate zoology) A food-gathering organ consisting of a fleshy basal ridge or lobe, from which numerous ciliated tentacles arise; found in Bryozoa, Phoronida, and Brachiopoda. Lophophore The crown of tentacles which surrounds the mouth in the Bryozoa, Phoronida, and Brachiopoda. The numerous ciliated tentacles arise from a circular or horseshoe-shaped fold of the body wall. The tentacles are hollow outgrowths of the body wall, each containing fluid-filled extensions of the body cavity and extended hydraulically. The primary function of the lophophore is to gather food. On the tentacles are ciliary tracts which drive a current of food-particle-bearing water through the lophophore. While the lophophore is primarily a feeding organ, it may also play a role in reproduction, respiration, and larval locomotion. See Brachiopoda, Bryozoa, Phoronida How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| However, LaBarbera's measurements indicate that the extra folding seen in the larger brachiopods' lophophores does not give the organs more surface area than they would have without the change in shape. |
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