Hormonal regulation of Water Levels

• What part of the brain regulates water levels in the body?

  The hypothalamus
• How does the hypothalamus monitor water concentration in the blood?

  It detects changes in solute concentration
• What happens when water levels in the body are too low?

  The hypothalamus signals ADH release
• What is the role of ADH in water regulation?

  ADH increases water reabsorption in kidneys
• How does ADH affect urine production when the body is dehydrated?

  It decreases urine volume and concentrates urine
• What happens when the water level in the body is too high?

  The hypothalamus reduces ADH release
• What effect does low ADH have on the kidneys?

  The kidneys reabsorb less water, producing dilute urine
• What is the name of the process that maintains stable water levels in the body?

  Negative feedback
• Why is this regulatory process described as a negative feedback loop?

  It reverses changes to restore balance
• What is the goal of water level regulation in the body?

  To maintain homeostasis