FROG DISECTION
FROG’S DIGESTION SYSTEM
Frogs have a mouth, which serves as an insect trap. The mouth, consist of a tongue and two sets of special teeth. The frog has a large elastic gullet that allows it to swallow large prey. Food passes from the gullet through the tubular esophagus and then into the stomach. Then chemical digestion occurs in the stomach and the small intestine with the help of the digestive enzymes that are released …
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…the, mouths bottom is raised then external nares close, the glottis is opened and last the body wall is relaxed. The third stage is where air leaves the lungs, then the mouth lowers, external nares close, the, glottis is open, and last the body wall contracts. The last stage is when air leaves the mouth and it ends with the body wall being relaxed. (Bohensky, F. 1987)
This concludes my study on gas-exchange in the frog.
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