MCQ
Blood calcium level can be increased by the administration of
- AGlucogon
- BCalcitonin
- CThyroxine
- ✓Paratharmone
✓
Answer
Correct option: D.
Paratharmone
d
$A$. Glucagon is secreted from alpha cells of islets of Langerhans of pancreas. It increases blood sugar level by stimulating glycogenolysis (i.e. break down of glucose) and gluconeogenesis (synthesis of glucose).
$A$. Glucagon is secreted from alpha cells of islets of Langerhans of pancreas. It increases blood sugar level by stimulating glycogenolysis (i.e. break down of glucose) and gluconeogenesis (synthesis of glucose).
$B.$ Thyroxine is secreted from thyroid gland. It stimulates the consumption of oxygen by metabolically active tissues and also increases the oxidation of glucose in tissues.
$C.$ Parathormone is secreted from parathyroid gland and increases calcium reabsorption from the bones and causes mobilisation of calcium in the blood.
$D.$ Calcitonin is secreted from the $C-$cells of thyroid gland and acts on bone and kidneys to reduce blood calcium level. Hence, blood calcium level is increased by parathormone. So, the correct answer is $'Parathormone'$.
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