What are the effects of ADH secretion?
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Describe the negative feedback loop that controls the secretion of ADH by the posterior pituitary?
A person has a pituitary tumor with increased secretion of ADH. They might develop secondary hypertension due to increased: 1) water reabsorption 2) water excretion 3) sodium reabsorption 4) sodium excretion
Question 3 (1 point) The secretion of ADH is stimulated by; a) decrease plasma [Na+] b) excess water intake c) decrease in plasma osmolality d) increase in plasma osmolality Question 4 (1 point) A respiratory acidosis is caused by; a) pulmonary edema b) pneumonia. c pulmonary congestion d) hyperventilation
Multiple Choice An increase in Na+ intake though diet will result in: a decrease in ADH secretion, a decrease in water reabsorption and increase in urine volume an increase in ADH secretion, a decrease in water reabsorption and decrease in blood volume an increase in ADH secretion, an increase in water reabsorption and increase in blood volume a decrease in ADH secretion, an increase in water reabsorption and increase in urine volume
Two alleles (Adh' and Adh') of the Alcohol Dehydrogenase (ADH) gene exist in a large randomly-mating population of Drosophila. Researchers have determined the genotypes of the flies using gel electrophoresis. The number of individuals exhibiting all of the possible genotypes are listed in the table below. What are the allele and genotype frequencies for this population with respect to the Adh locus (please round to 2 decimal places)? Effects of Inbreeding Suppose that the population on the previous page is experiencing inbreeding...
12. Both ADH and aldosterone act to a. increase urine volume. b. increase blood volume C. increase total peripheral resistance. d. produce all of these effects 13. Blood pressure is lowest in a. arteries b. arterioles C. capillaries d. venules e. veins 14. Angiotensin 11 a. stimulates vasoconstriction b. stimulates the adrenal cortex to secrete aldosterone. C. inhibits the action of bradykinin. d. does all of these 15. Stretch receptors in the aortic arch and carotid sinus a stimulate secretion...
which of the following is a compensation mechanism for dehydration. a) Peripheral vasodilation. b) Increased secretion of ADH c) Decreased secretion of aldostrone d) Slow and strong cardiac contraction
What is the significance of the secretion “signal peptide” (or secretion signal sequence)? What is it a signal for?
Briefly describe the function of the nephron (filtration, resorption, secretion): If a patient has hypovolemia, how does ADH (antidiuretic hormone) correct this to a euvolemic (normal volume) state? Briefly describe the process:
Exercise 9: Activity 6- The Effect of Hormones on Urine Formation 1) What is ADH? Where is it produced? Look at your results for when ADH was absent and ADH was present. What can you conclude about ADH? 2) What is aldosterone? Explain how it is produced. 3) Consider a situation in which both aldosterone and ADH are present. If you increase the aldosterone and decrease the ADH what would happen to sodium and what would happen to urine volume?