Endocrinology

1. Why do hormones cause a change in some cells or tissue but not in others?

2. What is a negative feedback loop?

3. Describe four functions of the hormone oxytocin.

4. Describe testing for hypothyroidism in dogs.

Case Study: Your Border Collie is within a week of whelping. Her mammary glands are distended and you can express normal milk from the glands. A friend tells you that twice daily treatment with oxytocin at this time will increase milk production later. Do you believe this recommendation? Why or why not?

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