The short reflexes in the digestive system are stimulated by:
Question
The short reflexes in the digestive system are stimulated by:
Solution
The short reflexes in the digestive system are stimulated by the enteric nervous system (ENS). The ENS is a part of the nervous system that directly controls the gastrointestinal system. It can function independently of the brain and the spinal cord.
Here are the steps:
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The process begins when the walls of the gastrointestinal tract are stretched by the presence of food or chyme (partially digested food).
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This stretching stimulates the sensory receptors in the ENS.
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The sensory information is then processed by the enteric neurons in the gut wall.
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These neurons coordinate an appropriate response, such as increasing or decreasing the rate of gastric emptying, or adjusting the rate of secretion of digestive juices.
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The response is carried out by the effector cells, such as smooth muscle cells and cells that secrete digestive enzymes.
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These short reflexes help to regulate the local, or segmental, functions of the digestive system, such as mixing and propulsion of food and absorption of nutrients.
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