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A time-space diagram of a peristaltic wave after a water swallow. High-pressure values are red, zero pressure is blue-green. The ridge in the upper part of the picture is the high pressure of the upper esophageal sphincter which only opens for a short time to let water pass.
Nutcracker esophagus is characterized as a motility disorder of the esophagus, meaning that it is caused by abnormal movement, or peristalsis of the esophagus. [2] People with motility disorders present with two main symptoms: chest pain or difficulty with swallowing. Chest pain is the more common.
Reconstruction of a Roman peristyle surrounding a courtyard in Pompeii, Italy. In ancient Greek [1] and Roman architecture, [2] a peristyle (/ ˈ p ɛr ɪ ˌ s t aɪ l /; Ancient Greek: περίστυλον, romanized: perístulon) [3] [4] is a continuous porch formed by a row of columns surrounding the perimeter of a building or a courtyard.
Before PDF version 1.5, the table would always be in a special ASCII format, be marked with the xref keyword, and follow the main body composed of indirect objects. Version 1.5 introduced optional cross-reference streams, which have the form of a standard stream object, possibly with filters applied. Such a stream may be used instead of the ...
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Peristaltic tube pump with two sprung rollers Peristaltic pump in motion. A peristaltic pump, also commonly known as a roller pump, is a type of positive displacement pump used for pumping a variety of fluids.
Retroperistalsis is the reverse of the involuntary smooth muscle contractions of peristalsis.It usually occurs as a precursor to vomiting.Local irritation of the stomach, such as bacteria or food poisoning, activates the emetic center of the brain which in turn signals an imminent vomiting reflex.
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide Catastalsis is the rhythmic ...