who controls the deglutition
Answers
Answer:
Deglutition is divided into three phases: oropharyngeal, esophageal, and gastroesophageal.
Answer:
Deglutition is divided into three phases: oropharyngeal, esophageal, and gastroesophageal. The oropharyngeal phase is controlled by the trigeminal (CN V), facial (CN VII), glossopharyngeal (CN IX), vagus (CN X), and hypoglossal nerves (CN XII)
Explanation:
How is Deglutition controlled?
The swallowing center in the medulla oblongata initiates the deglutition reflex and causes progressive contraction of the pharyngeal muscles to continue to propel the food bolus. ... The pharyngeal phase is controlled by cranial nerves V, VII, IX, X, and XII.
Where is Deglutition controlled?
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.
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