Calcium plays a very important role in the formation of bones. Write about the role of endocrine glands and hormones responsible for maintaining calcium homeostasis.
$(i)$ Parathyroid gland secretes Parathyroid Hormone $(PTH)$,which maintains the balance of $Ca^{++}$ and $PO_4^{3-}$ in blood and other tissues. It induces the transport of calcium from bones into the blood and increases the reabsorption of $Ca^{++}$ by the kidneys and intestine.
(ii) Thyroid gland secretes Thyrocalcitonin $(TCT)$ hormone. It inhibits the release of $Ca^{++}$ from bone and lowers blood calcium levels; thus,it acts against $PTH$ and maintains the homeostasis of $Ca^{++}$.
(ii) Thyroid gland secretes Thyrocalcitonin $(TCT)$ hormone. It inhibits the release of $Ca^{++}$ from bone and lowers blood calcium levels; thus,it acts against $PTH$ and maintains the homeostasis of $Ca^{++}$.
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Match the diseases in Column $I$ with their respective causes given in Column $II$:
Column $I$ Column $II$ $i$. Alzheimer's disease $a$. Oversecretion of Growth Hormone from pituitary gland in adults. $ii$. Diabetes mellitus $b$. Degeneration of dopamine-producing neurons in $CNS$. $iii$. Acromegaly $c$. Underactivity of Beta cells of pancreas. $iv$. Parkinson's disease $d$. Degeneration of cholinergic and other neurons in $CNS$.
Select the correct option from the following:
| Column $I$ | Column $II$ |
|---|---|
| $i$. Alzheimer's disease | $a$. Oversecretion of Growth Hormone from pituitary gland in adults. |
| $ii$. Diabetes mellitus | $b$. Degeneration of dopamine-producing neurons in $CNS$. |
| $iii$. Acromegaly | $c$. Underactivity of Beta cells of pancreas. |
| $iv$. Parkinson's disease | $d$. Degeneration of cholinergic and other neurons in $CNS$. |
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From the perspective of embryonic origin,which of the following is ectodermal?
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View SolutionWhich of the following statements is correct in relation to the endocrine system?
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View SolutionMatch the following lists (Hormone and its source of secretion):
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| $(a)$ Somatostatin | $(1)$ Pineal gland |
| $(b)$ Melatonin | $(2)$ Corpus luteum |
| $(c)$ Aldosterone | $(3)$ Placenta |
| $(d)$ Progesterone | $(4)$ Adrenal cortex |
| $(e)$ $HCG$ | $(5)$ Islets of Langerhans |
| $(6)$ Adenohypophysis |
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