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28 Cards in this Set
- Front
- Back
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Spicules
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their bodies aree little more mass of cells embedded in a gelatinous matrix and stiffened by a skeleton spicules of calcium carbonate or silicai and collagen.
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spongin
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fiberous, collagenous material making up the skeletal network of horny spnges.
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ostia
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body opening for incoming water
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oscula
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excurrent opening in the sponge
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choanocytes
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peculiar flagellated collar cells
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dermal ostia
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tiny incuurent pores
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spongocoel
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water enters through microscopic dermal pores into a large cavity
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radial canal
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canal along the ambulACRA RADIATING FROM THE RING CANAL OF ECHINODERMS
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incurrent canal
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where water enters drom the dremial ostia
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prosopyles
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tiny opening
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mesohyl
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gelatinous mixture
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pinacocyte
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a type of celss in a sponge
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pinacoderm
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pinacocyte cells
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myocytes
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pinococytes are modified as contactrile, which are arranged in circular bands around oscula pores
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scerocytes
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secrete spicules
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collencytes
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fibrillar collagen
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spongocytes
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screte the spongin fibers of the skeleton
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lophocytes
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screte large quanties of collagen but are distinguashable from collencytes
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asexual reproduction
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having sex by yourslef
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external buds
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buds on the outside that can detach from the sponge
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internal buds/gemmules
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some are formed in freshwater and marine sponges
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micropyle
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gemmules escape therough a special opening
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monoecious
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have both male and female sex cells in them
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parenchymula
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the free swimming larvae of most spnges in a SOLID BODY
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amphiblatula
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hollow blatua
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regeneration
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restore there own body parts
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somatic embryogenesis
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when a sponge gets disasociate it can become a spinge
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trabecular net
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living tissue produced by the fusion of pseudopia of archeocytes
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