(The plural of faux, the top of the throat,) isthmion, amphibranchia. The top of the throat; the space about the openings into the larynx and pharynx, which can be seen when the mouth is open and the tongue depressed. Upon looking into a person's mouth when wide open, we see a soft curtain hanging from the palate bones, named velum pendulum palati; in the middle of which a papilla projects from the velum, named uvula, or pap of the throat. From each side of the uvula, at its root, two arches or columns pass down, the anterior to the root of the tongue, the posterior to the entrance of the gullet. Between the arches, on each side, the cellular glands, called amygdalae, or almonds of the ears, are situated. The common opening behind the anterior arch may be named fauces, from which there are six passages, viz. two upwards, one to each nostril; two at the sides, or one to each ear, called the Eustachian tubes; two downwards: the anterior is the passage through the glottis and larynx into the trachea, which terminates in the lungs; the posterior is the largest, named pharynx, or the top of the oesophagus, which leads to the stomach. Inneson the Muscles.