Presentation on theme: " Today’s Objectives TSW be able to recognize and give examples of the three types of symmetry found in animals. TSW be able to properly use directional."— Presentation transcript:
1 Today’s ObjectivesTSW be able to recognize and give examples of the three types of symmetry found in animals.TSW be able to properly use directional terms for anatomical position.TSW be able to draw the three types of triploblastic body plans.
5 Bilaterally Symmetrical Animals PlatyhelminthsChordatesFishesHerpsBirdsRotifersMolluscsArthropodsALLOWS FOR CEPHALIZATION!
6 Directional Orientation Anterior vs. PosteriorDorsal vs. VentralMedial vs. LateralDistal vs. ProximalInferior vs. SuperiorCephalic vs. CaudalAboral vs. Oral
7 Acoelomate Pseudocoelomate Eucoelomate Body PlansAcoelomatePseudocoelomateEucoelomate
8 Tissue Layer Body Plans Diploblastic – ectoderm and gastroderm separated by mesogleaTriploblastic - ectoderm, mesoderm and endodermAcoelomatePseudocoelomateEucoelomate
9 Acoelomate Body PlansSolid mass of cells between endoderm and ectoderm (parenchyma)
10 Pseudocoelomate Body Plans Body cavity not entirely lined with mesodermPseudocoelom comes from blastocoel
11 Eucoelomate Body Plans Cavity completely lined with mesoderm (peritoneum and serosa)Visceral structures suspended
12 Review ItemsDraw each type of triploblastic body plan and label each germ layer.Name at least one phylum of animals that falls into each category of symmetry.
13 Anatomical Position Review Use the proper terms to describe the relationship between the following body parts:A) hand is ____ to the elbowB) knee is ____ to the headC) bellybutton is ____ to the spinal cordD) heart is ____ to the lungsE) head is ____ to the neck (2 terms fit here)F) wrist is ____ to the fingers