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Q. No.Which of the following is not a feature characteristic of the anterior pituitary?
1.
It synthesizes and releases tropic hormones.
2.
It is controlled by releasing and inhibiting hormones secreted from the hypothalamus.
3.
It serves as the terminal end of the hypothalamo-hypophyseal tract.
4.
Its hormones may influence other endocrine glands, that, in turn, secrete other hormones.
| 1. | It synthesizes and releases tropic hormones. |
| 2. | It is controlled by releasing and inhibiting hormones secreted from the hypothalamus. |
| 3. | It serves as the terminal end of the hypothalamo-hypophyseal tract. |
| 4. | Its hormones may influence other endocrine glands, that, in turn, secrete other hormones. |
Subtopic: Adenohypophysis & Hypothalamus |
55%
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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
Subtopic: Prolactin & Posterior Pituitary |
77%
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One of the reasons for iodine to be a part of a balanced diet would be:
| 1. | Iodine is needed for an enzyme that facilitates the synthesis of thyrotropin-releasing hormone (TRH). |
| 2. | The thyroid gland cannot produce thyroxine without iodine, which leads to the goiter condition. |
| 3. | Iodine is necessary for the proper functioning of the thyroid, adrenals and pancreas. |
| 4. | The iodine is needed for positive feedback to the hypothalamus and the anterior pituitary to stimulate the thyroid to produce more thyroxine. This in turn prevents the goiter condition. |
Subtopic: Thyroid Gland Part I |
64%
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What would be the result of hypoadrenalism [Addison’s disease]?
| 1. | Decreased blood concentrations of cortisol and aldosterone, and increased concentrations of CRH and ACTH |
| 2. | Decreased blood concentrations of epinephrine and norepinephrine, and no change in concentrations of CRH and ACTH |
| 3. | Decreased blood concentrations of thyroid hormones, and increased concentrations of TRH and TSH |
| 4. | Increased blood concentrations of cortisol and aldosterone, and decreased concentrations of CRH and ACTH |
Subtopic: Adrenal Medulla |
59%
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Somatostatin from the hypothalamus:
| 1. | stimulates secretion of insulin and glucagon by pancreas |
| 2. | inhibits secretion of insulin and glucagon by pancreas |
| 3. | stimulates secretion of growth hormone from anterior pituitary |
| 4. | inhibits secretion of growth hormone from anterior pituitary |
Subtopic: Adenohypophysis & Hypothalamus |
80%
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Identify the incorrectly matched pair:
| 1. | Hyposecretion of growth hormone in childhood | Dwarfism |
| 2. | Hyposecretion of growth hormone in adulthood | Cretinism |
| 3. | Hypersecretion of growth hormone in childhood | Gigantism |
| 4. | Hypersecretion of growth hormone in adulthood | Acromegaly |
Subtopic: Adenohypophysis & Hypothalamus |
88%
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All the following hormones are produced by anterior pituitary except:
| 1. | Gonadotropins | 2. | ACTH |
| 3. | Prolactin | 4. | Melatonin |
Subtopic: Adenohypophysis & Hypothalamus |
81%
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The releasing hormones and inhibitory hormones secreted by hypothalamus reach anterior pituitary by:
| 1. | portal circulation | 2. | axons |
| 3. | general circulation | 4. | lymph |
Subtopic: Adenohypophysis & Hypothalamus |
87%
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The functions regulated or influenced by thyroid glands in humans include all except:
1. basal metabolic rate
2. erythropoeisis
3. water and electrolyte balance
4. sleep wakefulness cycle
1. basal metabolic rate
2. erythropoeisis
3. water and electrolyte balance
4. sleep wakefulness cycle
Subtopic: Thyroid Gland Part I |
90%
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The actions of adrenaline will include all the following except:
1. Piloerection
2. Pupilary dilation
3. Glycogenesis
4. Positive ionotropic and chronotropic effect on heart
Subtopic: Adrenal Medulla |
67%
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