Describe the hormonal response to a meal.

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College Answer

For a good answer candidates were expected to have an integrated knowledge of 
gastrointestinal physiology. Gut function is regulated by the enteric nervous system and by 
paracrine and endocrine hormones released by hormone secreting cells in the mucosa of 
the gut (enteroendocrine cells). These cells secrete hormones in response to neural 
innervation or in response to triggers associated with ingested food. Gut functions 
influenced include secretion, digestion, absorption and motility. The endocrine system also 
has an important role in the handling of nutrients following absorption and some mention 
of insulin was required.