| 词汇 | epiglottis |
| 释义 | epiglottis noun[ C ] anatomy specializeduk /ˌep.ɪˈɡlɒt.ɪs/ us /ˌep.əˈɡlɑː.t̬ɪs/ a small flat part at the back of the tongue that closes when you swallow to prevent food from entering the tube that goes to the lungs（舌头后部的）会厌 The mouth & throat adenoid alveolar alveolar ridge buccal buccinator hard palate Jacobson's organ jawline labial labially labiodental mandible pharynx salivary gland sphenopalatine stomodeal stomodeum sublingual submandibular tonsil Chest, diaphragm, the closed epiglottis, and the raised palate all form a supply chamber for the breath. The entrance to it is covered by the epiglottis, over which the food slides. The epiglottis is the valve which closes over the upper opening of the larynx. The windpipe opens downward from the pharynx, but this communication can be shut off by a little plate or lid of cartilage, the epiglottis. This is accomplished through the soft palate and epiglottis, which are operated somewhat as valves. epiglottis | American Dictionaryepiglottis noun[ C ] us/ˌep·ɪˈɡlɑt̬·əs/ biology a flat part at the back of the tongue, which closes when you swallow to stop food from entering the tube that air goes down Examples of epiglottisepiglottis In a normal epiglottal stop, the epiglottis need not close against the pharyngeal wall. The apex of the epiglottis can still be seen (behind an air bubble). Moreover, the aryepiglottic folds are stretched between the lowered arytenoids and the epiglottis, as a result of tongue advancement. A gum elastic bougie is invaluable when only the posterior portion of the glottis or the tip of the epiglottis is visible. When we swallow food or drink, a lid called the epiglottis usually comes down over the trachea to prevent food from falling in and blocking the windpipe. In (a) the long vowel is nearing its end and the lateral margins of the epiglottis are far from the pharyngeal walls indicated by the lines. It is found in the epiglottis (part of the larynx) and the pinnae (the external ear flaps of many mammals including humans). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Subsequently, false vocal fold adduction, adduction of the aryepiglottic folds and retroversion of the epiglottis take place. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Humans have taste receptors on taste buds (gustatory calyculi) and other areas including the upper surface of the tongue and the epiglottis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The epiglottis may be active, contacting the pharynx, or passive, being contacted by the aryepiglottal folds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the human body the automatic temporary closing of the epiglottis is controlled by the swallowing reflex. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When food is being swallowed, the epiglottis moves backward to cover the larynx, preventing food from entering the trachea. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The epiglottis functions to guard the entrance of the glottis, the opening between the vocal folds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The epiglottis and arytenoids are cherry-red and swollen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The vestibular fold is formed by the vestibular ligament extending from lateral walls of epiglottis to arytenoid cartilage covered with mucous membrane. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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