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Jan 19
The throat, also known as the pharynx, is a muscular tube that connects the nasal cavity and mouth to the esophagus and larynx. It is divided into three parts: the nasopharynx, oropharynx, and laryngopharynx.
1. Nasopharynx: This is the uppermost part of the throat, located behind the nasal cavity. It serves as a passageway for air and connects the nasal cavity to the oropharynx. The nasopharynx contains the adenoids, which are a collection of lymphoid tissue.
2. Oropharynx: This is the middle part of the throat, located behind the oral cavity. It serves as a common pathway for both air and food. The oropharynx contains the tonsils, which are also lymphoid tissue.
3. Laryngopharynx: This is the lowermost part of the throat, located behind the larynx. It serves as a passageway for both air and food. The laryngopharynx connects to the esophagus, which leads to the stomach.
The throat is lined with a mucous membrane that helps to moisten and protect the tissues. It also contains various muscles that aid in swallowing and speaking. Additionally, the throat is home to the epiglottis, a flap of cartilage that prevents food from entering the airway during swallowing.
1. Nasopharynx: This is the uppermost part of the throat, located behind the nasal cavity. It serves as a passageway for air and connects the nasal cavity to the oropharynx. The nasopharynx contains the adenoids, which are a collection of lymphoid tissue.
2. Oropharynx: This is the middle part of the throat, located behind the oral cavity. It serves as a common pathway for both air and food. The oropharynx contains the tonsils, which are also lymphoid tissue.
3. Laryngopharynx: This is the lowermost part of the throat, located behind the larynx. It serves as a passageway for both air and food. The laryngopharynx connects to the esophagus, which leads to the stomach.
The throat is lined with a mucous membrane that helps to moisten and protect the tissues. It also contains various muscles that aid in swallowing and speaking. Additionally, the throat is home to the epiglottis, a flap of cartilage that prevents food from entering the airway during swallowing.
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