This document provides an overview of frog anatomy and the major organ systems. It describes the skin, heart, lungs, liver, gallbladder, stomach, small intestine, large intestine, spleen, fatty bodies, mesentary, bladder, and esophagus. The presentation is intended to help students complete a frog dissection lab booklet by identifying each organ's location and basic function within the respiratory, circulatory, digestive, urinary, integumentary, and reproductive systems.

1. Getting To Know Your
Frog Anatomy

2. Directions
• Use this presentation to
complete the 1st table in
Section 1 of your Frog
Dissection Booklet.
• READ THE DIRECTIONS for
each section throughout the
entire book!

3. • The frogs skin is permeable.
(allows water in and out of body)
• Has glands that release toxins for
protection against predators.
• Camouflage color and pattern to
hide from predators.
• Used to regulate body
temperature.

4. Heart
Circulatory System
• 3 chambers - 2 atrium on top
1 ventricle on bottom.
• Circulates blood throughout
the body.

5. Right & Left Lungs
Respiratory system
• Frogs use lungs for CO2 and O2
exchange.
• Lungs used for buoyancy while
swimming.

6. Liver - Digestive System
• The largest organ
inside of the body.
• Composed of three
lobes.
• Secretes a
digestive juice
called BILE, which
is needed to digest
fats in the diet.

7. Gall bladder
Digestive System
• A small balloon like organ
located under the liver.
• Stores bile

8. Stomach – Digestive System
• In the frog -
First site of
chemical
digestion.
• Breaks down
food
mechanically
and
chemically

9. Small Intestine
Digestive System
• Narrow tube
near the end of
the digestive
tract.
• Digests food into nutrients
which are absorbed into the
bloodstream through villi.

10. Large Intestine
Digestive System
• Short tube that stores solid
waste for excretion.
• Absorbs water.

11. Spleen – Circulatory System
• Stores and recycles blood cells.

12. Fatty Bodies - Digestive &
Reproductive Systems
• Stores fat which
gives the frog
energy for
hibernation and
mating.
• Helps frog stay
warm.
• Enables frog to
float.

13. Mesentary
Integumentary System
• A thin transparent tissue that
hold the intestines together.
• Surrounding organs and blood
vessels are also held in place.

14. Bladder
Urinary System
• Stores liquid waste – urine.

15. Esophagus
Digestive System
• Short tube that connects the
frogs mouth to its stomach.

16. The End
• Move onto the next Table in
section 1