Q. No.Which of the following is true about parathyroid glands?
| 1. | They are 4 in number |
| 2. | Located on dorsal side of thyroid gland |
| 3. | one pair parathyroid gland is present each lobe of thyroid gland |
| 4. | All of these |
Subtopic: Parathyroid |
97%
Level 1: 80%+
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The two glands located in the neck region are
| 1. | Thyroid gland and parathyroid gland |
| 2. | Pituitary gland and pineal gland |
| 3. | Adrenal gland and thymus |
| 4. | Pineal gland and thyroid gland |
Subtopic: Thyroid Gland Part I | Thyroid Gland Part II | Parathyroid |
94%
Level 1: 80%+
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Which hormone regulates the calcium level in our body?
| 1. | Thyrocalcitonin | 2. | Parathyroid hormone |
| 3. | Thyroxine | 4. | Both 1. and 2. |
Subtopic: Thyroid Gland Part II | Parathyroid |
91%
Level 1: 80%+
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Consider the following statements regarding parathyroid hormone (PTH):
Which of the following is correct?
| Statement A: | PTH increases blood calcium levels by promoting bone resorption. |
| Statement B: | PTH stimulates calcium absorption from the digestive tract and reabsorption from the renal tubules. |
| 1. | Both Statement A and Statement B are correct. |
| 2. | Both Statement A and Statement B are incorrect. |
| 3. | Statement A is correct but Statement B is incorrect. |
| 4. | Statement A is incorrect but Statement B is correct. |
Subtopic: Parathyroid |
89%
Level 1: 80%+
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In a child of 15 years age, plasma calcium level is diagnosed below optimum level. Which organ is malfunctioning?
| 1. | Thyroid gland | 2. | Liver |
| 3. | Parathyroid | 4. | Posterior lobe of pituitary |
Subtopic: Parathyroid |
83%
Level 1: 80%+
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Parathyroid hormone works antagonistic with
| 1. | Thyrocalcitonin | 2. | Thyroxine |
| 3. | ACTH | 4. | All of these |
Subtopic: Parathyroid |
84%
Level 1: 80%+
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The plasma calcium levels is very effectively maintained by a balance between the activities of
| 1. | Thyroxine and parathormone. |
| 2. | Parathormone and calcitonin. |
| 3. | Aldosterone and vasopressin. |
| 4. | Insulin and glucagon. |
Subtopic: Thyroid Gland Part II | Parathyroid |
85%
Level 1: 80%+
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Parathyroid hormone (PTH) increases blood Ca²⁺ level by:
| 1. | stimulating osteoblasts to deposit Ca²⁺ in bone |
| 2. | enhancing reabsorption of Ca²⁺ in renal tubules and mobilising Ca²⁺ from bone |
| 3. | stimulating calcitonin release |
| 4. | reducing absorption of Ca²⁺ from intestine |
Subtopic: Parathyroid |
85%
Level 1: 80%+
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Antagonistic hormones are hormones that have opposing effects on the same physiological function, working against each other to maintain balance in the body. Which combination of hormones and their respective sources correctly represents the calcium regulatory mechanism?
| 1. | Parathyroid hormone from parathyroid glands and calcitonin from thyroid gland |
| 2. | Thyroxine from thyroid gland and cortisol from adrenal cortex |
| 3. | Insulin from pancreas and glucagon from liver |
| 4. | ADH from posterior pituitary and aldosterone from adrenal cortex |
Subtopic: Thyroid Gland Part I | Parathyroid |
85%
Level 1: 80%+
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Given below are two statements:
| Assertion (A): | PTH and thyrocalcitonin are antagonistic hormones |
| Reason (R): | PTH is produced by the parathyroid gland while thyrocalcitonin is produced by thyroid gland |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Thyroid Gland Part I | Thyroid Gland Part II | Parathyroid |
77%
Level 2: 60%+
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