C8: Internal Balance

Question 1

Question: How do our bodies compensate for environmental changes?

Answer 1

Answer: Our bodies use the nervous and endocrine systems to compensate through a mechanism called homeostasis.

Question 2

Question: What controls temperature fluctuations in our bodies?

Answer 2

Answer: The hypothalamus controls temperature fluctuations in our bodies.

Question 3

Question: What happens to urine production when a person loses a lot of water?

Answer 3

Answer: The kidneys produce more concentrated urine.

Question 4

Question: What is involved in the process of reabsorption in the nephron?

Answer 4

Answer: Reabsorption involves the transfer of essential solutes and water from the nephron back into the blood.

Question 5

Question: What determines changes in osmotic pressure of the blood?

Answer 5

Answer: Osmoreceptors in the hypothalamus determine changes in osmotic pressure of the blood.

Question 6

Question: What controls the constriction of blood vessels and the release of aldosterone?

Answer 6

Answer: The activated enzyme angiotensin controls the constriction of blood vessels and the release of aldosterone.