quiz

Endocrine System

1. Which gland is known as the “master gland”?

  • A) Pituitary gland
  • B) Adrenal gland
  • C) Thyroid gland
  • D) Pancreas
A) Pituitary gland Explanation

2. Which hormone regulates calcium levels in the blood?

  • A) Insulin
  • B) Glucagon
  • C) Parathyroid hormone
  • D) Aldosterone
C) Parathyroid hormone Explanation

3. Which hormone is called growth hormone?

  • A) Thyroid hormone  
  • B) Insulin
  • C) Estrogen
  • D) Somatotropin
D) Somatotropin Explanation

4. Which of the following glands is not a part of the organized endocrine glands?

  • A) Thyroid
  • B) Adrenal
  • C) Pancreas
  • D) Liver
D) Liver Explanation

5. The hypothalamic–pituitary–adrenal axis is an example of:

  • A) Endocrine feedback loop
  • B) Exocrine signaling
  • C) Paracrine signaling
  • D) Neurotransmitter action
A) Endocrine feedback loop Explanation

6. Which gland is the neural control center for all endocrine systems?

  • A) Thyroid gland
  • B) Parathyroid gland
  • C) Hypothalamus
  • D) Pancreas
C) Hypothalamus Explanation

7. Which organ secretes the endocrine hormone erythropoietin?

  • A) Liver
  • B) Kidneys
  • C) Heart
  • D) Pancreas
B) Kidneys Explanation

8. What hormone regulates the salt and water balance in the body?

  • A)  Insulin
  • B) Glucagon
  • C) Aldosterone
  • D) Cortisol
C) Aldosterone Explanation

9. Which hormone is known as the “hunger hormone”?

  • A) Insulin
  • B) Leptin
  • C) Ghrelin
  • D) Cortisol
C) Ghrelin Explanation

10. Iodine is important for the synthesis of which hormone?

  • A) Insulin
  • B) Thyroxine 
  • C) Cortisol
  • D) Estrogen
B) Thyroxine  Explanation

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