Animal Anatomy & Physiology Sea Star Dissection
Entry Task Have Out: Dissecting Safely Sea Star Dissection Instructions Prepare for Chordate Presentation
Chordate Group Presentation
Dissecting Safely Read Along We will review these items EVERY time we Dissect. Keep this Handout in your Class Folder / Binder.
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
SPINES PEDICELLARIA SKIN GILLS Image by Riedell
SPINY SKIN SPINES for protection connect to http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish SPINES for protection connect to ENDOSKELETON inside underneath skin
PEDICELLARIAE (sing. Pedicellaria) http://www.discoveringfossils.co.uk/echinoid_pedicillaria.jpg http://attleborobio.blogspot.com/2008/04/weekly-urchin-pedicellariae.html Keep surface clear of organisms
connect to coelom inside SKIN GILLS Hollow skin tubes that project from skin for increased surface area connect to coelom inside Image by Riedell
Skin gills between spines http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish EXCHANGE GASES and EXCRETE NITROGEN WASTE
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish
TUBE FEET surfaces Can exchange gases and excrete nitrogen waste http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish Can exchange gases and excrete nitrogen waste
AMBULACRAL GROOVE TUBE FEET sit in GROOVE
CUT TRIVIUM
DIGESTIVE GLAND Makes BILE ABSORBS NUTRIENTS
http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
2 part STOMACH
CARDIAC stomach connects to mouth (extruded during feeding) http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm 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
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Starfish/
http://www.k-state.edu/organismic/echinoderms_and_protochordates.htm
GONADS
AMBULACRAL RIDGE AMPULLAE (tops of tube feet)
DIGESTIVE GLAND GONAD OSSICLES
ENDOSKELETON made of OSSICLES http://www.esu.edu/~milewski/intro_biol_two/lab__13_echinoderm/starfish_endoskeleton.html
HOMEWORK: Review Frog dissection instructions Highlight important steps Note questions you have Watch video of frog dissection