Digestion Flashcards
Almost no protein or fat digestion occurs in mouth except
Lingual lipase secreted by Ebners glands on dorsal surface of tongue
When swallowing
Larynx (glottis) up epiglottis down to seal trachea
Swallowing procedure is regulated by
Medulla oblongota and pons
stomach volumes
empty= 50 mL
meal = 1L
max = 4L
gastric juice per meal
400-800 mL
Parerial cells
Exocrine
Secrete HCl and intrinsic factor
Enterochromaffin cells
Endocrine
secretes Histamine
Chief cells
Exocrine
Secrete Pepsin and Gastric lipase
D cells
Endocrine
Secrete somatostatin
G cells
Endocrine
Secrete Gastrin
Mucous neck cells
Exocrine
Secretes mucus and HCO3-
Intrinsic factor
Protein that binds ingestied vit B12
Ulcers cause by
Helicobacter pylori
Small intestine length
6m / 17 feet
Duodenum length
10-12 inches
Large intestine length
5 feet
Diameter of small intestine
3-4cm
Jenunum length
4-7 feet
Ileum length
5-7 feet
Liver is the source of
Body heat
Liver is the
One of the largest organs in the body (excluding skin)
Glycogenesis
Makes glycogen
glucose to glycogen
Glycogenolysis
Glycogen back into glucose
(Lysis of glycogen)
Gluconeogenesis
Non sugars (A.A) into glucose
