Getting To Know Your Frog Anatomy

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!

Skin Integumentary System

• 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.

Heart Circulatory System

• 3 chambers - 2 atrium on top 1 ventricle on bottom.• Circulates blood throughout

the body.

Right & Left LungsRespiratory system

• Frogs use lungs for CO2 and O2 exchange.

• Lungs used for buoyancy while swimming.

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. 

Gall bladderDigestive System

• A small balloon like organ located under the liver.

• Stores bile

Stomach – Digestive System• In the frog -

First site of chemical digestion.

• Breaks down food mechanically and chemically

Small IntestineDigestive System

• Narrow tube near the end of the digestive tract.

• Digests food into nutrients which are absorbed into the bloodstream through villi.

Large IntestineDigestive System

• Short tube that stores solid waste for excretion.• Absorbs water.

Spleen – Circulatory System• Stores and recycles blood

cells.

Fatty Bodies - Digestive & Reproductive Systems

• Stores fat which gives the frog energy for hibernation and mating.

• Helps frog stay warm.

• Enables frog to float.

MesentaryIntegumentary System

• A thin transparent tissue that hold the intestines together.

• Surrounding organs and blood vessels are also held in place.

BladderUrinary System

• Stores liquid waste – urine.

EsophagusDigestive System

• Short tube that connects the frogs mouth to its stomach.

The End• Move onto the next Table in

section 1