Question

1. Which of the following sets of hormones are antagonists?

   1. Calcitonin and parathyroid hormone

   2. Glucagon and insulin

   3. GHRH and GHIH

   4. All of the above

   5. None of the above

2. The primary effect of calcitonin is to

   1. Increase blood glucose

   2. Decrease blood glucose

   3. Increase blood calcium

   4. Decrease blood calcium

   5. Regulate metabolism

3. The “master endocrine gland” is the ___

   1. Thyroid

   2. Pituitary

   3. Adrenal

   4. Parathyroid

   5. pineal

4. ___ are attached to transport proteins within the bloodstream.

   1. ​​​​​​​Releasing hormones

   2. Pancreatic hormones

   3. Water-soluble hormones

   4. Lipid-soluble hormones

   5. All of the above

5. Pitocin is the synthetic form of ___ used to induce labor by stimulating uterine contractions.

   1. ​​​​​​​ Estrogen

   2. Progesterone

   3. Prolactin

   4. Oxytocin

   5. Human chorionic gonadotropin

Answer 1

1. Answer: All the above

Explanation: Calcitonin and parathyroid hormone are antagonists each other. The Calcitonin reduce the blood calcium level and parathyroid hormone increase calcium level in blood. Insulin is the hormone which signal the liver to absorbs the excessive glucose. Glucagon is the hormone which signals the liver to release the glucose. Growth Hormone Releasing Hormone is responsible for release of growth hormone Growth Hormone Inhibiting Hormone is for Inhibiting the release of growth hormone. So all the three sets are antagonists.

2. Answer: Decrease blood calcium

Explanation: Calcitonin is the hormone which is responsible for the reduction of calcium level in the blood it inhibits the calcium level by two ways they are inhibit the process of osteoclast because the due to osteoclast the bone get broken and calcium get increased in the blood due to the inhibition the calcium level get decreased. And the other way is decrease the reabsorption of calcium by the kidney.

3. Answer: Pituitary gland

Explanation: Pituitary gland is also called as master endocrine gland because the hormones secreted from this gland control all other glands.

4. Answer: All the above

Explanation: All the hormones such as releasing hormone, pancreatic hormone, water soluble hormone, lipid soluble hormone needs carrier or transport protein in the blood stream to reach the target cell.

5. Answer: Oxytocin

Explanation: Pitocin is the synthetic form of Oxytocin it helps to strengthen the uterine contraction.