Endocrine System- Chapter 18 – Flashcards

Which gland or organ is not strictly classified as an endocrine gland?

Which of the following does not influence the responsiveness of a target cell to a hormone?

Which of the following is true when describing the permissive effect of a hormone?

Which of the following is not a true statement? a. most hormone systems function under a positive feedback system b. secretion of hormones occurs in short bursts c. signals from the nervous system regulate hormone secretion d. chemical changes in the blood may determine concentration of hormone release e.regulation of secretion prevents overproduction of a hormone

Which statement is correct regarding the relationship between the hypothalamus and pituitary gland?

Which is not a function of the parathyroid glands? a. decrease formation of Vitamin D b. increase the number of osteoclasts c. regulate the level of calcium in the blood d. increase bone resorption e. promote formation of calcitriol

Which statement is not true of the interplay between PTH and calcitriol? a. calcitriol increases calcium absorption from foods b. PTH increases resorption of bone c. high blood calcium levels increases calcitonin release d. PTH decreases vitamin D levels e. PTH raises blood calcium levels

Which of the following layers of the adrenal cortex is matched correctly?

Which of the following is a true statement?

The flight or fight responses produces all the following expect? a. increased heart rate and force of contraction b. dilation of vessels to the digestive organs c. increase in blood pressure d. decreased urinary activity e. increased glycogenolysis

Which of the following sequence of events is correct regarding the mechanism of protein hormone action? I. activation of adenylate cyclase II. activation of the G protein III. activation of a protein kinase IV. phosphorylation of a cellular protein V. binding to membrane receptor VI. formation of the cAMP

Which of the following hormones contributes to setting the circadian rhythm?

Which of the following hormones play a major role during the exhaustion stage of GAS?

Where is ADH made?

ACTH causes the release of

Which hormone uses a second messenger mechanism

The amount of ADH that is secreted by the posterior pituitary glands varies with

Which of the following conditions would result from hyposecretion of aldosterone?