Endocrine MCQ
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Which one of the following embryological sources gives rise to the anterior pituitary :
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The endocrine gland responsible for the body's circadian rhythm is the :
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What is the vertebral level that the thyroid gland is situated in the neck?
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Which layer of cervical fascia forms the false capsule of thyroid gland?
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Oral contraceptives consisting of progesterone-only consist of a cycle of :
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💡Explanation :-
- Activation of Gq coupled receptors leads to the activation of phospholipase C (PLC) , which in turn catalyzes the hydrolysis of phosphatidylinositol 4,5 bisphosphate (PIP2) into inositol trisphosphate (IP3) and diacylglycerol (DAG) .
- IP3 then binds to its receptor on the endoplasmic reticulum, causing the release of calcium ions (Ca2+) into the cytoplasm, while DAG activates protein kinase C (PKC).
- These second messengers, IP3 and DAG, play crucial roles in various signaling pathways, including intracellular calcium release and PKC-mediated signaling.
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Postmenopausal women should not take hormone replacement therapy if They have an absence of troublesome symptoms ?
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This drug inhibits/slows the digestion of sugars in the digestive tract :
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Lack of glucocorticoids with primary causes would be attributed to which condition?
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Which of the following hormones are released from the anterior pituitary?
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Lack of ADH causes diabetes insipidus. This drug may be prescribed to combat the disorder :
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Activation of this G protein-coupled receptor results in the second messengers IP3 and DAG :
