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The cricopharyngeal spasms ("feeling that something is stuck") occur in the cricopharyngeal part of the inferior pharyngeal constrictor muscle, at the bottom of the throat. They cause muscle tension on the cricoid cartilage, leading to a globus feeling. Pharyngeal spasms, a more common source of a globus feeling, cause tension on the thyroid ...
Upper respiratory system, with soft palate labeled near center. The soft palate (also known as the velum, palatal velum, or muscular palate) is, in mammals, the soft tissue constituting the back of the roof of the mouth. The soft palate is part of the palate of the mouth; the other part is the hard palate. The soft palate is distinguished from ...
These four muscles have different actions, but in general assist in elevating the hyoid bone and widening the esophagus during swallowing.When the two bellies of the digastric contract, they pull upward on the hyoid bone; but if the hyoid is fixed from below, the digastric assists in extreme opening of the mouth such as yawning or taking a large bite of an apple. [1]
The thyroarytenoid muscle, consisting of two parts having different attachments and different directions, is rather complicated regarding its action. Its main use is to draw the arytenoid cartilages forward toward the thyroid, thus relaxing and shortening the vocal folds. But, owing to the connection of the deeper portion with the vocal fold ...
Swallowing. Swallowing, also called deglutition or inglutition[1] in scientific contexts, is the process in the body of a human or other animal that allows for a substance to pass from the mouth, to the pharynx, and into the esophagus, while shutting the epiglottis. Swallowing is an important part of eating and drinking.
The pharyngeal muscles are a group of muscles that form the pharynx, which is posterior to the oral cavity, determining the shape of its lumen, and affecting its sound properties as the primary resonating cavity. The pharyngeal muscles (involuntary skeletal) push food into the esophagus. There are two muscular layers of the pharynx: the outer ...
The cricopharyngeus muscle is also described as the upper esophageal sphincter. It is a circular muscle at the base of the throat, behind the larynx. The muscle is closed (actively contracting) at all times and opens for swallowing or to allow relief of pressure in the esophagus via burping or vomiting. In R-CPD, the swallowing function of the ...
The arytenoid muscle / ær ɪ ˈ t iː n ɔɪ d / or interarytenoid muscle is a composite intrinsic muscle of the larynx, consisting of a transverse part and an oblique part - the two parts may be considered as separate muscles: an unpaired transverse arytenoid muscle, and a bilaterally paired oblique arytenoid muscle.