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STARFISH DISSECTION. http://www.emerchandise.com/images/p/SBS/pdPASBS0005.jpg. Kidspiration by Riedell. SYMMETRY. ADULTS- Radial LARVA- Bilateral. http://www.uic.edu/classes/bios/bios100/labs/radial.jpg. STARFISH. LATIN meaning KINGDOM _____________ - PowerPoint PPT Presentation
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STARFISH DISSECTIONhttp://www.emerchandise.com/images/p/SBS/pdPASBS0005.jpg
Kidspiration by Riedell
SYMMETRYADULTS- Radial
LARVA- Bilateralhttp://www.uic.edu/classes/bios/bios100/labs/radial.jpg
STARFISH LATIN meaningKINGDOM _____________
PHYLUM _____________________________
CLASS _______________________________ANIMALIAECHINODERMATA spiny skinASTEROIDEA star-like
SPINY SKINSPINES for protection connect to ENDOSKELETON inside underneath skinhttp://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
OSSICLESCalcium carbonate plates form endoskeleton insidehttp://ebiomedia.com/prod/BOechinoderms.html
SPINES PEDICELLARIA SKIN GILLSImage by Riedell
PEDICELLARIAE(sing. Pedicellaria)Keep surface clear of organisms
SKIN GILLS Hollow skin tubes that project from skin for increased surface area connect to coelom insideImage by Riedell
Skin gills between spinesEXCHANGE GASES and EXCRETE NITROGEN WASTEhttp://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
TUBE FEET surfaceshttp://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
EYESPOTSSense light/dark
ORAL VIEWhttp://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
http://ebiomedia.com/gall/skin/skin1.htmlOpening to water vascular systemMadreporite
WATER VASCULAR SYSTEMBIODIDAC
http://mbgnet.mobot.org/salt/animals/star.jpg
AMBULACRAL GROOVETUBE FEET sit in GROOVE
TUBE FEETUsed for feeding & locomotion
Dissection StepsBegin cutting down the central part of rayIdentify Digestive GlandsIdentify connection of digestive glands to the pyloric stomach Investigate stomachFind Pyloric and Cardiac StomachsFind where Pyloric Stomach connects to digestive glands and anusFind stone canal and MadroporiteExamine Tube Feet, Gonads, Radial & Ring Cannals, Ampullae
Begin to cut down central part of ray
DIGESTIVE GLANDMakes BILEABSORBS NUTRIENTS
http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
2 part STOMACH
DIGESTIVE SYSTEMDIGESTIVEGLANDSDIGESTIVEGLANDSMOUTHANUS
CARDIAC stomach connects to mouth (extruded during feeding)PYLORIC stomach connects to digestive glands and ANUShttp://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/
AMBULACRAL RIDGE covered by OSSICLES contains RADIAL NERVE (nervous)RADIAL CANAL (water vascular system)http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/
AMBULACRAL RIDGE
OSSICLESCalcium carbonate plates form endoskeleton insidehttp://ebiomedia.com/prod/BOechinoderms.html
GONADS
http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
NERVOUS SYSTEMNERVE RING encircles mouthRADIAL NERVES run inside AMBULACRAL RIDGE in each arm
SEPARATE SEXESGONADS- reproductive organs Starfish have both SEXUAL ASEXUAL (Regeneration)
http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
DIGESTIVEGLANDGONADOSSICLES
LARVAFERTILIZATIONEXTERNALINDIRECTHas BILATERAL SYMMETRY and wings to swimBIPINNARIA DEVELOPMENTSEXUAL REPRODUCTION