The immune responses in older people are weak due to the degeneration of:
1. Thyroid
2. Pineal
3. Adrenal
4. Thymus

Subtopic:  Thymus |
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Which of the following endocrine glands is under the direct neural regulation of the hypothalamus?
1. Pineal
2. Thymus
3. Posterior pitutary
4. Adrenal medulla

Subtopic:  Adenohypophysis & Hypothalamus |
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Which of the following is true?
1. Hormones regulate cellular functions, and generally negative feedback regulates hormone levels.
2. The circulating level of a hormone is held constant through a series of positive feedback loops.
3. Both lipid-soluble hormones and water soluble hormones bind to intracellular protein receptors.
4. The ducts of endocrine organs release their contents into the bloodstream.

Subtopic:  Hormones: General Consideration |
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All the following are secreted by the anterior pituitary except:-

1. Prolactin

2. Somatotropin

3. Vasopressin

4. Gonadotropins

Subtopic:  Prolactin & Posterior Pituitary |
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Identify the incorrect statement:
1. In males FSH regulates spermatogenesis
2. Thyroid gland produces T3 and thyroxine (T4) hormones
3. ACTH stimulates secretion of glucocorticoids
4. PTH is a hyperglycemic hormone

Subtopic:  Parathyroid |
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Hormones that act by interacting with intracellular include all the following except:
1. Thyroxin
2. Estrogen
3. Epinephrine
4. Cortisol 

Subtopic:  Mechanism of Hormone Action |
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The amino acid derivative among the following hormone is:-

1. Insulin
2. Epinephrine
3. Estradiol
4. Testosterone

Subtopic:  Hormones: General Consideration |
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Androgenic steroids in females are secreted by:
1. pineal gland
2. Testes
3. Adrenal cortex
4. Hypothalamus

Subtopic:  Adrenal Cortex: Aldosterone |
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Which of the following hormones does not have an intracellular receptor?
1. Estradiol
2. Thyroxin
3. Adrenocorticotrophic hormone
4. Cortisol

Subtopic:  Adenohypophysis & Hypothalamus |
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Hyperthyroidism [Graves' disease] is characterized by all the following except:

1. Toxic goiter

2. Exopthalmos

3. Bradycardia

4. Muscle weakness and termors

Subtopic:  Thyroid Gland Part I | Thyroid Gland Part II |
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