Frog Anatomy External Anatomy External nares or nostrils

External Anatomy • External nares or nostrils - Anterior openings for the entry or

Mouth Anatomy • Eustachian Tube Openings: Openings in the mouth that lead to tubes

Mouth Anatomy • Esophagus: Tube leading to the stomach • Tongue: Helps with grabbing

Internal Anatomy • Heart - Pumping organ of the circulatory system that has 3

Internal Anatomy • Liver - Secretes bile and helps digest food and filters blood.

Internal Anatomy • Pancreas - Gland which secretes digestive enzymes. • Gall Bladder -

Internal Anatomy • Small Intestine - The principal organ of digestion and absorption of

Internal Anatomy • Cloaca - Organ through which the frog’s digestive waste and reproductive

Internal Anatomy • Kidneys - Organs that filter the blood and remove the wastes

Internal Anatomy • Testes - Male sex organs that produce sex cells (sperm). •

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Frog Anatomy

External Anatomy • External nares or nostrils - Anterior openings for the entry or exit of air. • Tympanic Membrane - The eardrum - receives sound waves • Nictitating Membrane - A transparent part of a frog’s lower eyelid that moves over the eye to clean it and protect it.

External Anatomy

Mouth Anatomy • Eustachian Tube Openings: Openings in the mouth that lead to tubes that connect to the middle ear to equalize air pressure • Vomarine and Maxillary Teeth: Used for holding prey • Internal Nares (nostrils): Helps with breathing

Mouth Anatomy • Esophagus: Tube leading to the stomach • Tongue: Helps with grabbing and swallowing prey • Glottis: Tube leading to the lungs

Mouth Anatomy

Internal Anatomy • Heart - Pumping organ of the circulatory system that has 3 chambers. The Left Atrium, The Right Atrium, and the Ventricle. • Stomach - Stores food and mixes it with enzymes to begin digestion.

Internal Anatomy • Liver - Secretes bile and helps digest food and filters blood. • Lungs - Exchange point where carbon dioxide leaves and oxygen enters the blood; helps the frog breathe.

Internal Anatomy • Pancreas - Gland which secretes digestive enzymes. • Gall Bladder - Sac which stores bile. • Spleen - Organ in the frog’s circulatory system that makes, stores, and destroys blood cells.

Internal Anatomy • Small Intestine - The principal organ of digestion and absorption of digested food. • Large Intestine - Posterior organ of the digestive system which stores undigested food.

Internal Anatomy • Cloaca - Organ through which the frog’s digestive waste and reproductive cells leave the body. • Fat Bodies - Masses of fat in the body cavities of frogs. Needed for hibernating and mating.

Internal Anatomy • Kidneys - Organs that filter the blood and remove the wastes to make urine. • Urinary Bladder - The organ that collects and stores urine until released.

Internal Anatomy • Testes - Male sex organs that produce sex cells (sperm). • Ovaries - Organs of the female reproductive system that produce the eggs.

Internal Anatomy