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According to a study entitled The Treatment of the Different Foodstuffs by the Stomach, which appeared in Volume 12 of the American Journal of Physiology:
The rate of peristalsis noted when bread and milk were fed was stated as 6 waves per minute; a new contraction would thus appear every ten seconds. A considerably slower rate of peristalsis (4 waves per minute) was noticed after feeding a fat-suggesting that there might be characteristic rates for the different foodstuffs. Observations at different intervals after feeding were therefore made on various animals which had been fed various kinds of foods and the following results secured:
Average rate/minute Variations in rate
Fats 5.0 waves 4.0 to 6.0 waves
Proteins 5.2 waves 4.8 to 5.8 waves
Carbohydrates 5.5 waves 5.0 to 6.0 waves
In general, then, it seems that the average rate of peristalsis is 5.0 to 5.5 waves per minute, with variations noted from between 4.0 and 6.0 waves per minute.
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If the rate of peristalsis is too fast in this organ diarrhea may occur?
gallbladder
What cranial nerve is responsible for slowing the heart rate and accelerating peristalsis?
VAGUS
Why is peristalsis useful?
It moves ingested materials through the alimentary canal at a consistent rate preventing material from rotting.
Food moves through the digestive tract by wavelike contractions called?
Peristalsis is a series of involuntary smooth muscle contractions along the walls of the digestive tract that move food through the digestive tractperistalsis
What is the muscular contractions of the esophagus?
peristalsis.
In which place does peristalsis not occur?
. Peristalsis does not occur in the...
The squeezing motion that pushes food through the digestive system is called what?
Peristalsis.
Smooth muscle propels food through the alimentary canal by a process called?
The process in which muscles propel food through the alimentary canal is called peristalsis.
Sympathetic division stimulation causes?
Increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure.
What is absence of peristalsis?
achalasia (absent or ineffective peristalsis)
Muscular contractions of digestive tract?
this is called Peristalsis
Peristalsis is example of what type of muscle?
Peristalsis is the contraction of the digestive muscles. Peristalsis is the contractions that occur in the smooth muscles of the body.
