PCOL 838 Final Test Questions with Correct Answers

PCOL 838 Final Test Questions with Correct Answers what are the four major iselet cell types and their functions? - Answer-- beta cells = secrete insulin (60%) - alpha cells = secrete glucagon (30%) - delta cells = secrete somatostatin (10%) - pancreatic polypeptide secreting cell (1%) what is the effect of alpha cells (glucagon) on other islet cells? - Answer-it stimulates beta cells (insulin) and delta cells (somatostatin) what is the effect of delta cells (somatostatin) on other islet cells? - Answer-it inhibits beta cells (insulin) and alpha cells (glucagon) what is the effect of beta cells (insulin) on other islet cells? - Answer-it inhibits alpha cells (glucagon) what do beta cells secrete? a. insulin b. glucagon c. somatostatin - Answer-a. insulin what do alpha cells secrete? a. insulin b. glucagon c. somatostatin - Answer-b. glucagon what do delta cells secrete? a. insulin b. glucagon c. somatostatin - Answer-c. somatostatin what does the presence of C peptide mean? - Answer-it means insulin is being made what is the effect of insulin responsive cells (IRCs) on the body? - Answer-- liver and muscle = decrease gluconeogenesis and glycogenolysis - adipocytes = increased lipogenesis and adipogenesis