Gastrointestinal System - physiology Flashcards
deglutition is a word for what function
swallowing
the stomachs peristalsis is controlled through both nerves and hormonal signals but what is the main nerve involved
the vagus nerve (10th)
biles function/s is to
emulsify fat and carry away waste substance
gastrin is produced by the _ as a result of food presences, particularly _
stomach, protein
what does the stomach mucosal barrier do
protects the stomach against HCl
what is the stomach mucosal barrier made of and how does it function to protect the stomach
it’s a mucus-bicarbonate barrier that acts to maintain a pH balance
where is an intrinsic factor produced and what is its role
secreted by parietal cells to assist to absorb vitamin B12 in the ileum
What are the glands responsible for saliva production and what does saliva do
Parotid gland, submandibular gland sublingual gland.
Helps moisten, shape into a bolus and begin chemical digestion of food
glycolysis is what
the first stage of glucose breakdown for energy metabolism
what is glycogenolysis
the break down of glycogen into glucose
