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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
- Then process of the escape of liquid from tip of uninjured leaf is called
- Brunners gland are found in which of the following layers
- Food and space, the major limiting factors of an animal population, operate
- C₄ plants are more efficient in photosynthesis than C₃ plants due to:
- Which of these is not an important component of initiation of parturition in humans ?
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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