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.
5Bilaterally Symmetrical Animals PlatyhelminthsChordatesFishesHerpsBirdsRotifersMolluscsArthropodsALLOWS FOR CEPHALIZATION!
6Directional Orientation Anterior vs. PosteriorDorsal vs. VentralMedial vs. LateralDistal vs. ProximalInferior vs. SuperiorCephalic vs. CaudalAboral vs. Oral
7Acoelomate Pseudocoelomate Eucoelomate Body PlansAcoelomatePseudocoelomateEucoelomate
8Tissue Layer Body Plans Diploblastic – ectoderm and gastroderm separated by mesogleaTriploblastic - ectoderm, mesoderm and endodermAcoelomatePseudocoelomateEucoelomate
9Acoelomate Body PlansSolid mass of cells between endoderm and ectoderm (parenchyma)
10Pseudocoelomate Body Plans Body cavity not entirely lined with mesodermPseudocoelom comes from blastocoel
11Eucoelomate Body Plans Cavity completely lined with mesoderm (peritoneum and serosa)Visceral structures suspended
12Review 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.
13Anatomical 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