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The name of the canal is 'Eustachian tube'. It helps to regulate the pressure in the middle ear, when you expect the sound of high intensity. This is done in order to prevent damage to the ear drum. (You contract the whole thorax, when the loud sound is expected.)

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What structure connects the nasal and oral cavities to the larynx and esophagus inferiorly?

trachea


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There are Mucosa Membranes that line both the oral and nasal cavities. Mucous makes up these membranes.


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How is the nose and mouth connected?

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Where to oral and nasal cavity meet?

The oral and nasal cavities meet at the rear of the mouth in an area known as the pharynx. This region serves as a shared passageway for air and food, with the nasal cavity located above and the oral cavity located below.


What are the two cavities that are separated by the roof of the mouth?

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There are multiple cavities in the human skull, including the nasal cavity, oral cavity, and cranial cavity, which houses the brain.


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Is the esophagus a passageway that connects the mouth to the nose?

No, the esophagus is a muscular tube that connects the mouth to the stomach, allowing food and liquids to pass through for digestion. The nose connects to the throat through the pharynx, which is a different passage from the esophagus.


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