Which of the following phases of swallowing involves the epiglottis covering the opening of the larynx?
During the pharyngeal phase, the tongue seals the oropharynx. The soft palate and proximal pharyngeal wall seal off the nasopharynx. The vocal cords and arytenoids close off the laryngeal opening and the epiglottis swings down to cover the laryngeal vestibule. These actions seal the airway from the pharyngeal cavity.
What is the epiglottis quizlet?
The epiglottis is the uppermost cartilage; covers the larynx during swallowing. The epiglottis is the uppermost cartilage; covers the larynx during swallowing. During speaking, the vocal cords are pulled across the glottis and vibrated by exhaled air, producing sounds that may be turned into speech.
What makes up the arches in the back of the mouth and is on either side of the uvula?
Two muscular folds extend downward from the soft palate, on either side of the uvula. Toward the front, the palatoglossal arch lies next to the base of the tongue; behind it, the palatopharyngeal arch forms the superior and lateral margins of the fauces.
What triggers swallowing reflex?
The reflex is initiated by touch receptors in the pharynx as a bolus of food is pushed to the back of the mouth by the tongue, or by stimulation of the palate (palatal reflex). Swallowing is a complex mechanism using both skeletal muscle (tongue) and smooth muscles of the pharynx and esophagus.
Which of the following is a phase of swallowing that involves the epiglottis covering the opening of the larynx quizlet?
The pharyngeal phase of swallowing lasts about 1-2 seconds. During the pharyngeal phase, the vestibular folds and vocal cords close, and the epiglottis (ep-i-glot′is; on the glottis) is tipped posteriorly so that the epiglottic cartilage covers the opening into the larynx, and the larynx is elevated.
What does the epiglottis control quizlet?
The epiglottis covers the opening like a trapdoor during swallowing and preventing food from entering the trachea.
What does the epiglottis control?
When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. The muscles of the larynx pull upward to assist with this movement. They also tightly close during swallowing. That prevents food from entering your lungs.
What elevates the soft palate?
Levator veli palatini muscle: elevates the soft palate and is involved in swallowing.
What are the arches at back of mouth?
| Palatoglossal arch | |
|---|---|
| The mouth cavity. The cheeks have been slit transversely and the tongue pulled forward. (Glossopalatine arch labeled at upper right.) | |
| Details | |
| Identifiers | |
| Latin | Arcus palatoglossus, arcus glossopalatinus |