Basic frog anatomy for frog dissection

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