Pinyin/Pharynx

The pharynx is an organ in the back of the throat. It is part of the gastrointestinal system. It comes after the mouth and before the esophagus. Food and air go through the pharynx. It prevents food and liquids to enter the lungs.

The pharynx has 3 parts:
 * 1) Nasopharynx - the upper part of the back of the throat, which links to the nose
 * 2) Oropharynx - the part at the back of the throat
 * 3) Laryngopharynx - the bottom part of the pharynx, before the windpipe and esophagus for separating them

Yānbù shì zài hóulóng hòumiàn de qìguān. Tā shì wèichángdào xìtǒng de zǔchéng bùfèn. Yānbù zài kǒuqiāng hòumiàn, shíguǎn qiánmiàn. Shíwù hé kōngqì dōu jīngguò yānbù. Tā fángzhǐ shíwù hé yètǐ jìnrù fèibù.

Yānbù yǒu 3 gè bùfèn:
 * 1) Bíyānbù - hóulóng hòumiàn de shàngbù, liánjiē bízi
 * 2) Kǒuyānbù - hóulóng hòumiàn de bùfèn
 * 3) Hóuyānbù - yānbù de dǐbù, zài qìguǎn hé shídào de qiánmiàn yòngyǐ fēnkāi tāmen