Topic : PERISTALSIS

Dra. Mónica Delgado Castillo

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 a series of wave-like

muscle contractions that moves food to

different processing stations in the

digestive tract.

The process of peristalsis begins in the

esophagus when a bolus of food is

swallowed.

The strong wave-like motions of the smooth muscle in the

esophagus carry the food to the stomach, where it is

churned into a liquid mixture called chyme. 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.

ADVENTAGE

Peristalsis is a normal function of the

body. It is an automatic and important

process that moves food through the

digestive system.

It also moves urine from the kidneys

into the bladder, and bile from the

gallbladder into the duodenum .

DISAVENTAGE

Slow peristalsis causes constipation.

the absence of peristalsis causes many

changes as:

deficiency in swallowing food

alterations in normal urination

MEDICAL

There are medications

that increase peristalsis

as: neostigmine that can be used in

selected patients to help ileus paralytic.

Others drugs decreased peristalsis as

Propantheline bromide

There are diseases that cause

decreased peristalsis as: paralytic ileus,

achalasia, dysphagia

while, There are agents stimulates

peristalsis such as bacteria

Issue in Ecuador

In Ecuador the most common disorder

of the peristalis is constipation. Its

prevalence affects 20 percent of the

population, says the society of

gastroenterology Ecuador