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Topic: Peristalsis

Related Topics

Digestive tract

Peristaltic pump

Borborygmus

Organ (anatomy)

Gastrointestinal tract

Muscle

Anal sphincter

Chyme

Heartburn

Defecation

Ileum

Small intestine

Autonomic nervous system

Vagus nerve

Villi

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	MedlinePlus Medical Encyclopedia: Peristalsis
		Peristalsis is a series of organized muscle contractions that occur throughout the digestive tract.
		Peristalsis is also seen in the tubular organs that connect the kidneys to the bladder.
		Peristalsis is an automatic and important process that moves food through the digestive system.
	www.nlm.nih.gov /medlineplus/ency/article/002282.htm (237 words)

	MedFriendly.com: Peristalsis
		Peristalsis is a series of wavelike, coordinated contractions and relaxations of a tube-like structure in the body that forces the contents of the tubes onwards.
		Peristalsis also occurs in the esophagus, which is the natural tube in the body that food travels down to enter the stomach.
		A strong, sustained wave of peristalsis occurs in the colon two or three times a day (usually after a meal), which forces the waste material into the last part of the large intestine (the rectum) and prompts the urge to poop.
	www.medfriendly.com /peristalsis.html (712 words)

	Early American Manual Therapy
		It is the detection of excessive vascular peristalsis (pathologic physiology) in its incipient stage that allows ample time to remove the causes of disease before the destructive pathologic anatomy has appeared in the line that renders utility to medical skill.
		Excessive peristalsis does not always result in forcing excessive blood to tissue, because the arterial pulse caused mainly by the variation of pressure within the artery and the results of intermittent expulsion of blood jets from the heart may become so deranged and disordered that blood pressure is low.
		The disproportionate arterial peristalsis is due to abnormal volumes of blood in local segments of the tractus vascularis, e.
	www.meridianinstitute.com /eamt/files/robinson/Rob1ch37.htm (4862 words)

	Medical Animation Library: Peristalsis
		Peristalsis is a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract.
		Next, peristalsis continues in the small intestine where it mixes and shifts the chyme back and forth, allowing nutrients to be absorbed into the bloodstream through the small intestine walls.
		Peristalsis concludes in the large intestine where water from the undigested food material is absorbed into the bloodstream.
	www.pennhealth.com /health_info/animationplayer/peristalsis.html (0 words)

	Dr. Koop - Peristalsis (Site not responding. Last check: )
		Peristalsis is a series of coordinated, rhythmic muscle contractions that occur throughout the length of the gastrointestinal tract.
		Peristalsis is also seen in the ureters, which are tubular organs that connect the kidneys to the bladder.
		Peristalsis is a normal function of the body to move fluid from one place to another.
	www.drkoop.com /ency/article/002282.htm (296 words)

	Peristalsis - Health Encyclopedia News Story - WMAQ \| Chicago
		Peristalsis is a series of organized muscle contractions that occur throughout the digestive tract.
		Peristalsis is also seen in the tubular organs that connect the kidneys to the bladder.
		Peristalsis is an automatic and important process that moves food through the digestive system.
	www.nbc5.com /encyclopedia/6863031/detail.html (403 words)

	Early American Manual Therapy
		Excessive peristalsis is most liable to arise from excessive drinking of fluids, from diabetes or polyuria where excessive volumes of fluid passed through the urinary tract in limited time.
		(b) Deficient peristalsis of the urinary tract arises in connection with limited drinking of fluids, limited quantity of urine (the pressure of urine stimulates the ureteral peristalsis); a limited quantity of urine accompanied by a limited peristalsis is liable to be followed by precipitation of crystals and urinary calculus.
		Excessive vesical peristalsis, irritable bladder may be sufficient to cause vesical colic, which may radiate, reflexly to the tractus intestinalis or genitalis, disordering the function of peristalsis, absorption or secretion.
	www.meridianinstitute.com /eamt/files/robinson/Rob1ch35.htm (3808 words)

	Initiation of peristalsis by circumferential stretch of flat sheets of guinea-pig ileum -- Brookes et al. 516 (2): 525 ...
		The threshold for peristalsis was lower with more rapid stretches and was also lower in long preparations (25 mm) compared with short preparations (5-10 mm), indicating that ascending excitatory pathways play a significant role in triggering peristalsis.
		This study aimed to identify the mechanisms underlying the abrupt initiation of peristalsis, without the complications of fluid displacement that occur in tubular preparations of gut during the propagating contractions that cause emptying of the segment.
		Peristalsis represents a co-ordinated pattern of motor activity in the intestine that has been widely studied in vitro, but is also known to occur in vivo.
	jp.physoc.org /cgi/content/full/516/2/525 (9847 words)

	Mixing and Propulsion of Gastrointestinal Contents
		Peristalsis begins on the orad side of distension, and the portion of the wave moving in the orad direction quickly dies out...
		The intensity of antral peristalsis is regulated in response to signals from both the stomach and the duodenum.
		Signals that increase peristalsis in the stomach include: 1) distension (vagally) and locally (myenterically) and 2) gastrin from the antral mucosa (both inhibit pyloric tone as well, to assist in passage of digesta out of the stomach).
	faculty.etsu.edu /currie/mixingpropulsion.htm (1106 words)

	BioMed Central \| Full text \| The enantiomers of tramadol and its major metabolite inhibit peristalsis in the guinea pig ...
		Peristalsis completely ceased with a latency of 8.3 ± 4.1 min and a duration of 9.7 ± 0.4 min in two segments exposed to 30 μM (+)-tramadol.
		Peristalsis was completely blocked by 100 μM O-desmethyltramadol in all segments, an effect that took place in less than 4 min after addition of the drug.
		Inhibition of peristalsis was reflected by an increase in PPT, and abolition manifested itself in a lack of propulsive motility in spite of an intraluminal pressure of 400 Pa as set by the position of the outlet tubing.
	www.biomedcentral.com /1471-2210/7/5 (4259 words)

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