Frog Dissection - PowerPoint PPT Presentation

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Frog Dissection
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Frog Dissection

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  1. Frog Dissection

  2. Comparing frogs with humans • Frogs have a lot of the same organs that humans do. By dissecting a frog it will allow us to learn about the structure and function of some of our organs. Amphibians MAMMALS Smooth Skin Hair Lays Eggs Bear Live Young Metamorphosis Develops inside mother

  3. Let’s take a look at our specimen • Notice the coloration of the frog. What is the advantage?

  4. External Anatomy - What will we see on the outside of the frog? Eye with Membrane Ear (tympanum) Webbed Hind Feet

  5. External Anatomy – Examining the Mouth Area • To examine the mouth area you will need to use your scissors to cut the sides of the mouth slightly.

  6. External Anatomy – Examining the Mouth Area Teeth Eustachian Tube Esophagus Glottis Tongue

  7. External Anatomy – Comparing Frog & Human THINK! – What are the similarities and differences between frog and human?

  8. Internal Anatomy – Making the Cuts • Carefully use the scissors to cut through the skin.

  9. Internal Anatomy – Structure & Function Heart Spleen Liver Stomach Fat Bodies Large Intestine Small Intestine

  10. Internal Anatomy – Structure & Function Gallbladder Lungs

  11. Internal Anatomy – Structure & Function Testis Kidney

  12. Internal Anatomy – Comparing Frog & Human

  13. Homework • A short ticket slip will be given before each lab session to make sure you have the knowledge to participate! • You must earn a “B” or better on the ticket slip in order to participate! • Tonight – Study structure and function of external anatomy!