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Probably because you can visualize the same from out side. You can list the same in internal body cavity and you wont be wrong. Mostly because the mouth and the anus both lead to the external environment.

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10y ago

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Oral cavity and its extension which stretches through the body to the anus why not listed as an internal body cavity?

It's because the oral cavity all the way to the anus is "open" to the external environment. Internal body cavities are those that are completely walled off from the external environment by well defined structures such as skin, mysentary, etc. In contrast the GI tract is specifically designed to periodically open to the external environment an allow food to enter and waste to leave.


What major cavity in the body are your teeth in?

The oral cavity


What type of body cavity does a jellyfish have?

Pisces or fish have true internal body cavity.


What is the internal body cavity?

An internal body cavity is a space in the body that does not contain something, much like a cavity in a tooth is where the tooth has rotted away. There are several examples of this: your sinuses are internal body cavities - they are an open space in your body. There is a body cavity in your chest as well surrounding your lungs and heart.


What is the body cavity that contains the mouth?

The mouth is also known as the oral cavity.


What it is a oral cavity?

The oral cavity is another name for the mouth.


What cavity contains the teeth and tongue?

The oral cavity contains the teeth and tongue. It is the opening through which food enters the body and where the process of digestion begins.


What type of body cavity is a clam?

A clam has a coelom, which is a fluid-filled body cavity. This cavity provides space for internal organs to develop and function properly.


What kind of body cavity do humans have?

Humans have a coelom body cavity, which is a fluid-filled cavity located between the body wall and the internal organs. This cavity provides space for organs to move and function properly.


What kind of cavity does an arthropod have?

Arthropods have an internal body cavity called a hemocoel which bathes the internal organs in nutrients, and is a component of their open circulatory system.


Are bilateral symmetry and a internal body cavity typical of polyps?

yes


What is the body cavity of frog?

If you are refering to fertilization then: '''Ovulated amphibian eggs that have not been coated with jelly in the oviduct are known as body-cavity eggs.'''There is the oral cavity: a. Esophagus opening. b. Vomerine teeth. c. Grove of the maxilla. d. Maxillary teeth. e. Internal nare. f. Eye ball. g. Eustachian tube opening. h. Jaw ridge. i. Underside of the tongue. j. Glottis. k. Cut muscle and bone.And the liver is the largest organ in the body cavity of a frog.