Glucagon
a. is secreted by the beta cells of the islets of Langerhans
b. is secreted in response to a fall in blood glucose
c. is, in general, antagonistic to all other hormones in terms of metabolic effects
d. increases fat stores by inhibiting the enzyme that catalyzes triglyceride breakdown
e. has none of the above characteristics
B
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Explain how cortisol suppresses the immune system, and why this is sometimes a useful therapy. What are some negative side effects of cortisol therapy? Why do doctors prescribe cortisol in doses that taper off at the end of the therapy period? Why do doctors sometimes prefer to prescribe nonsteroidal anti-inflammatory drugs?
What will be an ideal response?
Which of the following is not part of the extracellular matrix?
a. complex carbohydrates b. connexons c. collagen d. elastin e. fibronectin
Which factor below does not slow down gastric activities?
a. enterogastric reflex b. enterogastrones c. secretin d. gastrin e. cholecystokinin
Starting with the renal artery, place the arteries carrying blood into the renal cortex in order.
• segmental artery • renal artery • arcuate artery • interlobar artery • cortical radiate artery