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The blood calcium level is lowered by the deficiency of
Options
(a) parathormone
(b) thyroxine
(c) both calcitonin and parathormone
(d) calcitonin
Correct Answer:
parathormone
Explanation:
A peptide hormone secreted by the parathyroid gland in response to low levels of calcium in the blood. It acts to maintain normal blood levels of calcium by increasing the number of osteoclasts, which break down the bone matrix and release calcium into the blood. It also increases the reabsorption of calcium and magnesium ions in the kidney tubules, so that their concentration is maintained in the blood.
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Topics: Neural Control and Chemical Coordination
(195)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The first living organisms that appeared on the planet, according to the most
- Enzyme helping in oxidative decarboxylation of pyruvic acid is
- Restriction endonucleases are most widely used in recombinant DNA technology
- How many kinds of cells are found in islet of Langerhans
- In which form does the food transported in plants
Topics: Neural Control and Chemical Coordination (195)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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