The Frog

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The Frog
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The Mouth
                                              Vomerine and Maxillary Teeth Used for holding prey Internal Nares (nostrils) breathing Eustachian Tubes equalize pressure in inner ear Glottis Tube leading to the lungs Esophagus Tube leading to the stomach Tongue Front attached, aids in grabbing prey Tympanic Membrane eardrum, located behind eyes Nictitating Membrane clear eyelid, protects the eye
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Maxillary teeth
Vomerine teeth
Internal Nares
Nictitating Membrane
Orbits
Gullet
Tympanic Membrane
Opening to the Eustachian tubes
Glottis
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How to tell a Male from a Female
Male bullfrogs have a large tympanum
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The 1st Cut
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Peel back the skin
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Cut through the abdominal muscles pin back skin
flaps
Ventricle
Left Atrium
Liver
Fatty Bodies
Small Intestines
Stomach
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Internal Anatomy
Stomach First site of chemical digestion, breaks
down food Liver Makes bile (aids in
digestion) Gall bladder Stores bile Esophagus
Tube that leads to the stomach Pancreas Makes
insulin (aids in digestion) Small Intestine
(duodenum and ileum) absorb nutrients from
foodMesentery Holds coils of the small
intestine together Large Intestine Collects
waste, absorbs water Cloaca "Sewer" eggs,
sperm, urine and feces enter this area Spleen
Part of circulatory system, stores blood
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1. Liver
2. Oviduct
3. Intestine
4. Gall Bladder
5. Stomach
6. Kidney
7. Large Intestine
8. Ureter
9. Urinary bladder
10. Anus Opening to Cloaca

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Liver
Gall Bladder
Fatty Bodies
Small Intestines
Rectum
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Urogenital System
Kidneys Filter Blood Ureters Carry urine from
kidneys to bladder Testes Make sperm Oviducts
eggs travel through these Ovary makes egg
(usually not visible on frog) Urinary Bladder
Stores Urine Cloaca Where sperm, eggs, urine,
and feces exit. The "Sewer"
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