What is nasopharynx and oropharynx?
What is nasopharynx and oropharynx?
Your nasopharynx is located toward the bottom and back of your skull. It’s in the back of your nose and the roof of your mouth. The top of your nasopharynx connects to your nasal cavity. The bottom connects to your oropharynx (middle throat), leading to your hypopharynx (lower throat), trachea and eventually lungs.
What separates nasopharynx and oropharynx?
The soft palate divides the pharynx into the nasopharynx dorsally and the oropharynx ventrally. The oropharynx is divided into the isthmus of fauces (throat opening) and a laryngeal part.
What are the 3 parts of the pharynx?
The three parts of the pharynx are the nasopharynx, oropharynx, and hypopharynx.
Is nasopharynx a cancer?
Nasopharyngeal (nay-zoh-fuh-RIN-jee-ul) carcinoma is cancer that occurs in the nasopharynx, which is located behind your nose and above the back of your throat. Nasopharyngeal carcinoma is rare in the United States. It occurs much more frequently in other parts of the world — specifically Southeast Asia.
What is a oropharynx?
Listen to pronunciation. (OR-oh-FAYR-inx) The part of the throat at the back of the mouth behind the oral cavity. It includes the back third of the tongue, the soft palate, the side and back walls of the throat, and the tonsils.
What is a nasopharynx?
(NAY-zoh-FAYR-inx) The upper part of the throat behind the nose. An opening on each side of the nasopharynx leads into the ear.
What closes the oropharynx from the nasopharynx?
The uvula is a small bulbous, teardrop-shaped structure located at the apex of the soft palate. Both the uvula and soft palate move like a pendulum during swallowing, swinging upward to close off the nasopharynx to prevent ingested materials from entering the nasal cavity.
What is the difference between the nasopharynx oropharynx and laryngopharynx?
The oropharynx is the middle chamber of the pharynx that passes food from the mouth into the laryngopharynx. The nasopharynx opens above it as well. The laryngopharynx is the bottom part of the pharynx that marks the branching pathway between the digestive and respiratory systems.
What is oropharynx?
The oropharynx is the middle part of the pharynx (throat), behind the mouth. The pharynx is a hollow tube about 5 inches long that starts behind the nose and ends where the trachea (windpipe) and esophagus (tube from the throat to the stomach) begin.
What is the nasopharynx?
(NAY-zoh-FAYR-inx) The upper part of the throat behind the nose.
Is oropharynx the throat?
The part of the throat at the back of the mouth behind the oral cavity. It includes the back third of the tongue, the soft palate, the side and back walls of the throat, and the tonsils.
What is found in the oropharynx?
The four subsites contained within the oropharynx are the base of tongue, the palantine tonsils and tonsillar pillars, the soft palate, and the pharyngeal wall. The base of tongue begins at the circumvallate papillae and extends inferiorly to the vallecula.
Is the nasopharynx the throat?
The upper part of the throat behind the nose.
What are the 4 phases of swallowing?
There are 4 phases of swallowing:
- The Pre-oral Phase. – Starts with the anticipation of food being introduced into the mouth – Salivation is triggered by the sight and smell of food (as well as hunger)
- The Oral Phase.
- The Pharyngeal Phase.
- The Oesophageal Phase.
What are the 7 openings in the 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.
What is included in the nasopharynx?
The nasopharynx connects the nasal cavity to the oropharynx and contains the Eustachian tube openings and adenoids. Notable clinical situations include nasopharyngeal carcinoma and adenoidal hypertrophy.
What are the three regions of the pharynx?
Nasal pharynx – present posterior to the nasal cavity.
What are the divisions of the pharynx?
Subdivisions Of The Pharynx. The pharynx is classically divided into three compartments, based on location: the nasopharynx, the oropharynx, and the laryngopharynx (Figure 27-1A-C). NASOPHARYNX The nasopharynx is posterior to the nasal cavity, inferior to the sphenoid bone, and superior to the soft palate. During swallowing, the soft palate
Where is the nasal pharynx?
Anatomy. The pharynx consists of three major sections: the nasopharynx,the oropharynx,and the laryngopharynx.
What is the function of the pharynx?
The larynx helps provide smooth passage of air from the nasal cavity to the lungs