D236 pathophysiology Exam-scored A+-2022-2023
As Diane completes her race, what enables her body to maintain homeostasis despite her increased activity? Choose 3 answers.
A. Diane's sports drink helped to replace sod
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D236 pathophysiology Exam-scored A+-2022-2023
As Diane completes her race, what enables her body to maintain homeostasis despite her increased activity? Choose 3 answers.
A. Diane's sports drink helped to replace sodium and water lost due to sweating.
B. Diane's body produces more angiotensin II, allowing her body to constrict blood vessels and increase her blood pressure.
C. Diane's kidney reabsorbs more water and sodium in response to ADH and aldosterone.
D. Extracellular fluid shifts into intracellular fluid, expanding cells and stimulating the thirst center in the hypothalamus.
E. Diane's breathing increases to expel more CO2, which decreases pH and brings it back to homeostatic levels.
A, B, C
Sports drinks contain water and sodium, helping to replace what is lost through sweating.
As Diane sweats, the fluid loss stimulates her kidneys to produce renin. Renin directs the liver to generate angiotensinogen, which is converted first to angiotensin I and subsequently to angiotensin II. Angiotensin II stimulates arterial vasoconstriction, which helps to raise blood pressure.
As Diane sweats, the fluid loss stimulates the posterior pituitary to release ADH and the kidneys to produce renin. ADH acts on the collecting ducts within the kidney, increasing their ability to reabsorb water and produce a more concentrated urine. Renin directs the liver to generate angiotensinogen, which is converted first to angiotensin I and subsequently to angiotensin II. Angiotensin II prompts the adrenal glands to release aldosterone. Aldosterone acts on the kidney to increase both water and sodium reabsorption.
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