Same chapter3 marksDifficulty: Medium
Why is the pituitary called the master gland?
Endocrine System
3 marksDifficulty: Medium
What is feedback control in the endocrine system? Illustrate with thyroxine.
Original Khojo Papers practice question — not from a past board paper.
Answer
Feedback control is the regulation of a hormone by the effect it produces. The pituitary secretes thyroid-stimulating hormone, which makes the thyroid release thyroxine; as the level of thyroxine in the blood rises it inhibits the pituitary, so less stimulating hormone is released and the thyroxine level falls again.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This negative feedback keeps the concentration within narrow limits.
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