1. Frog
Dissection Lab

2. Skin
Tympanum
Lungs
External Nares
Liver
Internal Nares
Gall Bladder
Maxillary Teeth
Stomach
Vomerine Teeth
Small Intestine
Eustachian Tubes
Large Intestine
Tongue
Spleen
Esophagus
Kidney
Glottis
Oviducts/Eggs
Heart
Testis

3. Skin It’s covered with a protective slime secreted by glands within the skin. Oxygen passes through tiny blood vessels in the frog’s skin, helping it breathe. These colored patches on the skin are called chromatophores, which act as camouflage, helping the frog blend into its surroundings in the wild.

4. Tympanum
The tympanum, found just behind the eyes, functions as the ears of the frog. They receive sound waves both above and below water allowing the frog to hear.
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5. External Nares
The nares primary role is to let air into and out of the frog. This is a view of the nares from outside of the frog.
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6. Internal Nares
The nares primary role is to let air into and out of the frog. This is a view of the nares from inside of the frog.
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7. This set of teeth is used for holding prey.
Maxillary Teeth
This set of teeth is used for holding prey.
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8. This set of teeth is also used for holding prey.
Vomerine Teeth
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9. The eustachian tubes function to equalize pressure on both sides of the eardrum or tympanum
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10. Tongue
The tongue aids in swallowing and catching prey. In humans the tongue also aids in speech and taste.
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11. Glottis
The glottis is the opening between the vocal chords at the upper part of the windpipe or larynx.
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12. Esophagus
Food is swallowed through the esophagus where peristalsis aids its movement to the stomach.
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13. Lungs
The lungs transport oxygen to the blood as well as remove waste like carbon dioxide through a process called respiration.
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14. Heart
Unlike the human heart the heart of a frog only has three chambers (two atria and one ventricle) however the role and function is the same. The heart pumps blood throughout the body carrying oxygen and nutrients and picking up waste to be filtered by other parts of the body.
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15. Large
Intestine
The main role of the large intestine is to absorb water and store fecal material until it can be excreted from the body.
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16. Small
Intestine
The small intestine receives the mixture of chyme from the stomach through the pyloric valve. In the small intestine nutrients are absorbed from the tiny villi lining the inner walls of the small intestine.
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17. Stomach
In the stomach food is further broken down by gastric juices and peristalsis until it becomes a liquid substance called chyme.
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18. Liver
The liver produces bile, a substance that emulsifies fats contained within the food we eat, and stores it in the gall bladder to be secreted into the small intestine.
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19. Gall Bladder
The gall bladder stores bile that is received from the liver. Bile is secreted from the gall bladder into the first section of the small intestine (duodenum) to help aid in digestion.
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20. Spleen
The spleen helps to destroy old red blood cells and lymphocytes, which are cells that produce antibodies to help fight infected and cancerous cells.
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21. Kidneys
The Kidneys filter out waste from the blood through structures known as nephrons. The waste removed is combined with water to form urine.
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22. Oviducts
& Eggs
The oviducts are tubes that carry eggs from the ovaries to the uterus. The eggs are the female reproductive cell.
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23. Testis
The testis are the male reproductive gland that produce sperm and male hormones such as testosterone.
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24. Tympanum
Lungs
External Nares
Liver
Internal Nares
Gall Bladder
Maxillary Teeth
Stomach
Vomerine Teeth
Small Intestine
Eustachian Tubes
Large Intestine
Tongue
Spleen
Esophagus
Kidney
Glottis
Oviducts/Eggs
Heart
Testis