Food taken into the stomach is subjected to certain mechanical and physical forces derived from the energy of muscle contraction. The gastric movements result in a minute subdivision and final ejection of the stomach contents into the duodenum. Failure of the stomach to triturate and mix the food may be compensated for by chemical and other means, but if the expulsion of the contents is not accomplished, a most serious condition results that is paramount to every other consideration.
The characteristics of unstriated muscle, of which gastric muscle is composed, present the phenomena of a peculiar functional activity called tone. Tone differs from the peristaltic or contraction waves, in that there is a condition of continued contraction or shortening which persists, more or less constantly, decreased or increased by varying conditions. The relation between the condition of muscle tone and changes occurring in ordinary contraction, such
TURCK FB. THE DIETETICS OF ATONIC DILATATION OF THE STOMACHBASED ON A STUDY OF THE PHYSIOLOGY OF GASTRIC MOVEMENTS. JAMA. 1904;XLII(13):811–817. doi:10.1001/jama.1904.92490580001001
Coronavirus Resource Center
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: