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STARFISH DISSECTION

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Presentation on theme: "STARFISH DISSECTION"— Presentation transcript:

1 STARFISH DISSECTION http://www.emerchandise.com/images/p/SBS/pdPASBS0005.jpg

2 Kidspiration by Riedell

3 SYMMETRY ADULTS- Radial LARVA- Bilateral http://www.uic.edu/classes/bios/bios100/labs/radial.jpg

4 STARFISH LATIN meaning KINGDOM _____________ PHYLUM _____________________________ CLASS _______________________________ ANIMALIA ECHINODERMATA “spiny skin ” ASTEROIDEA “star-like”

5 SPINES PEDICELLARIA SKIN GILLS Image by Riedell

6 SPINY SKIN SPINES for protection connect to ENDOSKELETON inside underneath skin http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish

7 OSSICLES Calcium carbonate plates form endoskeleton inside http://ebiomedia.com/prod/BOechinoderms.html

8 SPINES PEDICELLARIA SKIN GILLS Image by Riedell

9 PEDICELLARIAE (sing. Pedicellaria) Keep surface clear of organisms

10 SKIN GILLS Hollow skin tubes that project from skin for increased surface area connect to coelom inside Image by Riedell

11 Skin gills between spines EXCHANGE GASES and EXCRETE NITROGEN WASTE http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish

12 TUBE FEET surfaces http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish

13 EYESPOTS Sense light/dark

14 ORAL VIEW http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish

15

16 http://ebiomedia.com/gall/skin/skin1.html Opening to water vascular system Madreporite

17

18 WATER VASCULAR SYSTEM BIODIDAC

19 http://mbgnet.mobot.org/salt/animals/star.jpg

20

21 AMBULACRAL GROOVE TUBE FEET sit in GROOVE

22 TUBE FEET Used for feeding & locomotion

23 CUT TRIVIUM

24 DIGESTIVE GLAND Makes BILE ABSORBS NUTRIENTS

25 http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

26 2 part STOMACH

27 DIGESTIVE SYSTEM DIGESTIVE GLANDS DIGESTIVE GLANDS MOUTH ANUS

28 CARDIAC stomach connects to mouth (extruded during feeding) PYLORIC stomach connects to digestive glands and ANUS http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

29 http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/

30 AMBULACRAL RIDGE covered by OSSICLES contains RADIAL NERVE (nervous) RADIAL CANAL (water vascular system) http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/

31 AMBULACRAL RIDGE AMPULLAE (tops of tube feet)

32 OSSICLES Calcium carbonate plates form endoskeleton inside http://ebiomedia.com/prod/BOechinoderms.html

33 GONADS

34 http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

35 NERVOUS SYSTEM NERVE RING encircles mouth RADIAL NERVES run inside AMBULACRAL RIDGE in each arm

36 SEPARATE SEXES GONADS- reproductive organs Starfish have both SEXUAL ASEXUAL (Regeneration)

37 http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm

38 DIGESTIVE GLAND GONAD OSSICLES

39 LARVA FERTILIZATION EXTERNAL INDIRECT Has BILATERAL SYMMETRY and wings to swim BIPINNARIA DEVELOPMENT SEXUAL REPRODUCTION

40 ASEXUAL REPRODUCTION Ability to self amputate Ability to regrow lost parts AUTOTOMY REGENERATION


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