What is the opening of the oral cavity to the pharynx?

What is the opening of the oral cavity to the pharynx?

The pocket-like part of the mouth that is framed on the inside by the gums and teeth, and on the outside by the cheeks and lips is called the oral vestibule. Moving farther into the mouth, the opening between the oral cavity and throat (oropharynx) is called the fauces (like the kitchen “faucet”).

Which part of the pharynx lies behind the oral cavity?

Oropharynx
Oropharynx. The oropharynx lies behind the oral cavity, extending from the uvula to the level of the hyoid bone. It opens anteriorly, through the isthmus faucium, into the mouth, while in its lateral wall, between the palatoglossal arch and the palatopharyngeal arch, is the palatine tonsil.

What are the 7 openings of pharynx?

Seven cavities communicate with it, viz., the two nasal cavities, the two tympanic cavities, the mouth, the larynx, and the esophagus. The cavity of the pharynx may be subdivided from above downward into three parts: nasal, oral, and laryngeal (Fig. 994).

Is the portion of the pharynx posterior to the mouth cavity?

The oropharynx is the portion of the pharynx that is posterior to the oral cavity. The most inferior portion of the pharynx is the laryngopharynx that extends from the hyoid bone down to the lower margin of the larynx.

What is oral cavity proper?

(OR-ul KA-vih-tee) Refers to the mouth. It includes the lips, the lining inside the cheeks and lips, the front two thirds of the tongue, the upper and lower gums, the floor of the mouth under the tongue, the bony roof of the mouth, and the small area behind the wisdom teeth.

How many openings does the pharynx?

The pharyngeal cavity has seven (7) openings which are: 1-The paired posterior nose –rostrodorsally which connect nasopharynx with nasal cavity. 2-The paired eustachian tube –dorsolaterally, opening of the auditory tubes, connect the nasopharyngeal with auditory tubes and then middle ear.

What is the posterior opening of the oral cavity?

The hard palate is covered by a mucous membrane and has the following three foramina: Incisive fossa: This opening is posterior to the central (incisor) teeth. It allows passage of the nasopalatine nerves. Greater palatine foramen: This opening is located on the lateral portion of the palate.

What are the parts of the oral cavity and oral pharynx?

The oral cavity and oral pharynx are divided into the following specific areas: LIPS (C00._; vermilion surface, mucosal lip, labial mucosa) upper and lower, form the upper and lower anterior wall of the oral cavity.

What is the difference between the nasopharynx and the oropharynx?

The nasopharynx is the portion of the pharynx that is posterior to the nasal cavity and extends inferiorly to the uvula. The oropharynx is the portion of the pharynx that is posterior to the oral cavity. The most inferior portion of the pharynx is the laryngopharynx that extends from the hyoid bone down to the lower margin of the larynx.

Where is the pharyngeal wall located in the body?

Behind, the pharyngeal wall lies against the cervical portion of the spinal column and the paravertebral muscles. In front, it opens into the respiratory and digestive tracts. The pharynx communicates with the: Choanae: the paired openings between the nasopharynx and the nasal cavity.

What is the function of pharynx in human body?

Pharynx. The pharynx, commonly called the throat, is a passageway that extends from the base of the skull to the level of the sixth cervical vertebra. It serves both the respiratory and digestive systems by receiving air from the nasal cavity and air, food, and water from the oral cavity. Inferiorly, it opens into the larynx and esophagus.

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