laryngopharynx

1 The laryngopharynx is connected to the oropharynx and the esophagus and trachea.

2 LPR is a disease in which stomach acid comes up into the throat to the level of the laryngopharynx.

3 Anteriorly, the laryngopharynx opens into the larynx, whereas posteriorly, it enters the esophagus.

4 Contractions of the pharyngeal constrictor muscles move the bolus through the oropharynx and laryngopharynx.

5 Figure 22.6 Divisions of the Pharynx The pharynx is divided into three regions: the nasopharynx, the oropharynx, and the laryngopharynx.

6 Both the oropharynx and laryngopharynx are passageways for air and food and drink.

7 The laryngopharynx is inferior to the oropharynx and posterior to the larynx.

8 Figure 22.7 Larynx The larynx extends from the laryngopharynx and the hyoid bone to the trachea.

9 Figure 22.8 Vocal Cords The true vocal cords and vestibular folds of the larynx are viewed inferiorly from the laryngopharynx.

10 Continuous with the laryngopharynx, the superior portion of the larynx is lined with stratified squamous epithelium, transitioning into pseudostratified ciliated columnar epithelium that contains goblet cells.

11 The stratified squamous epithelium of the oropharynx is continuous with the laryngopharynx.

12 The cilia beat the mucus upward towards the laryngopharynx, where it can be swallowed down the esophagus.

13 The other two subdivisions, the oropharynx and the laryngopharynx, are used for both breathing and digestion.

14 The inferior border of the laryngopharynx connects to the esophagus, whereas the anterior portion connects to the larynx, allowing air to flow into the bronchial tree.

15 Objective : To study the treatment method for concealed and small foreign body in laryngopharynx.

目的: 探讨喉咽部隐匿性、细小异物的治疗方法.

1 咽喉

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