Graves' disease is caused due to:
1. hyposecretion of thyroid gland
2. hypersecretion of thyroid gland
3. hyposecretion of adrenal gland
4. hypersecretion of adrenal gland
The posterior pituitary gland is not a 'true' endocrine gland because:
| 1. | it is provided with a duct |
| 2. | it only stores and releases hormones |
| 3. | it is under the regulation of hypothalamus |
| 4. | it secretes enzymes |
GnRH, a hypothalamic hormone, needed in reproduction, acts on:
| 1. | Anterior pituitary gland and stimulates secretion of LH and FSH. |
| 2. | Posterior pituitary gland and stimulates secretion of oxytocin and FSH. |
| 3. | Posterior pituitary gland and stimulates secretion of LH and relaxin. |
| 4. | Anterior pituitary gland and stimulates secretion of LH and oxytocin. |
Hypersecretion of Growth Hormone in adults does not cause further increase in height, because?
| 1. | Epiphyseal plates close after adolescence. |
| 2. | Bones lose their sensitivity to Growth Hormone in adults. |
| 3. | Muscle fibres do not grow in size after birth. |
| 4. | Growth Hormones become inactive in adults. |
Which one of the following hormones is not involved in sugar metabolism?
| 1. | Cortisol | 2. | Aldosterone |
| 3. | Insulin | 4. | Glucagon |
Which one of the following hormones though synthesised elsewhere, is stored and released by the master gland?
1. Melanocyte-stimulating hormone
2. Antidiuretic hormone
3. Luteinizing hormone
4. Prolactin
Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom:
| Endocrine gland | Hormone | Function/deficiency symptom | |
| (A) | Posterior Pituitary | Growth Hormone (GH) | Oversecretion stimulates abnormal growth |
| (B) | Thyroid gland | Thyroxine | Lack of iodine in diet results in goitre |
| (C) | Corpus luteum | Testosterone | Stimulates spermatogenesis |
| (D) | Anterior pituitary | Oxytocin | Stimulates uterus contraction during childbirth |
1. (A)
2. (B)
3. (C)
4. (D)
Identify the hormone with its correct matching of source and function:
| 1. | Oxytocin- posterior pituitary, growth and maintenance of mammary glands. |
| 2. | Melatonin- pineal gland, regulates the normal rhythm of sleep-wake cycle. |
| 3. | Progesterone- corpus-luteum, stimulation of growth and activities of female secondary sex organs. |
| 4. | Atrial natriuretic factor- ventricular wall increases blood pressure. |