Q. No.All the following regarding parathyroid glands are true except:
1.
They usually include four small glands.
2.
They are embedded in the posterior surfaces of the lateral lobes of the thyroid gland.
3.
They secrete parathyroid hormone and calcitonin.
4.
They play a critical role in calcium homeostasis.
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The peptide thyroid hormone that lowers calcium and phosphate ion concentration in the blood is:
| 1. thyroxine | 2. triiodothyronine |
| 3. calcitonin | 4. thyroid-stimulating hormone |
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A hormonal disorder that develops when pituitary gland produces too much growth hormone during adulthood is known as:
| 1. cretinism | 2. gigantism |
| 3. Conn’s syndrome | 4. acromegaly |
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Hormones are chemical messengers of all classes except:
| 1. | peptide | 2. | steroid |
| 3. | aminated | 4. | carbohydrate |
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Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?
| 1. Relaxin-Gigantism | 2. Prolactin-Cretinism |
| 3. Parathyroid hormone-Tetany | 4. Insulin-Diabetes insipidus |
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 |
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The only hormone secreted by pars intermedia of hypophysis is:
| 1. MSH | 2. GnRH |
| 3. Vasopressin | 4. Prolactin |
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The definition of hormone describes them as having all the following features except:
1. non-nutrient chemicals
2. intra-cellular messengers
3. produced in trace amounts
4. act on distant target organ
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ADH and oxytocin are synthesized by:
| 1. Anterior pituitary | 2. Hypothalamus |
| 3. Pars intermedia | 4. Pars nervosa |
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Which of the following endocrine glands is under direct neural regulation of hypothalamus?
| 1. Pineal | 2. Adrenal medulla |
| 3. Posterior pituitary | 4. Anterior pituitary |
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