Anatomy Of GI Flashcards
What is chyme as where is it formed
Chyme = food, saliva + gastric juice
Found = in stomach
Gastrin is a hormone, produced by which organ?
Stomach (secretes gastrin in blood)
Gastrin stimulates release of HCL. What is the function of HCL?
• kills bacteria in food
• converts pepsinogen in to pepsin
• pepsin breaks down proteins into peptides
Chief cells function?
• secrete pepsinogen
• secrete gastric lipase - splits triglycerides into fatty acids and monoglycerides
What does the mucosa secrete
Mucous - a protective barrier, parents digestion of stomach wall
What do parietal cells secrete?
Instrict factor - for absorption of B12
HCL:
• kill bacteria in food
• converts pepsinogen into pepsin
What do Chris cells secrete?
Pepsinogen:
• active form pepsin
• pepsin converts proteins into peptide
Gastric lipase:
• converts triglycerols into fatty acids and monoglycerides
What to G cells secrete?
Secrete Gastrin:
• stimulating parietal cells to secrete HCL
• stimulates chief cells to secrete pepsinogen
Which organ stores bile
Galbladder
Which organ produces enzymes which help in the digestion of proteins, fats and carbs
Pancrease
Which organ is response for absorption and digestion of water and nutrients
Small intestine
Goblet cells, paneth cells & epithelial cells are all found in the?
Small intestine
^ cyrpts of Lieberkuhn
Role of the goblet cells?
Secrete mucus
Which organs produces sodium bicarbonate to buffer the stomachs acid
Pancreas
Circular fold, intestinal juice and brush boarder enzymes are found where?
Small intestine
