EN3B-When a person drinks alcohol, the rate of urination increases. This suggests that antidiuretic hormone (ADH) may be affected by alcohol consumption in some way. Which of the following best accounts for the increase in urination?
- Alcohol inhibits the binding of ADH to receptors in the nephron.
- Alcohol inhibits the release of ADH.
- Alcohol could inhibit ADH release or the binding of ADH to receptors in the nephron.
- Alcohol stimulates the release of ADH

Alcohol inhibits the release of ADH.

EN3B-Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractures. The more calcium in the bones, the better the bone density. Which of the following would produce the greatest increase in bone calcium levels?
- glucagon receptor blocker
- parathyroid hormone injection
- calcitonin receptor blocker
- calcitonin injection

calcitonin injection