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Which of these structures of heart secrete hormones?

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in Biology – Class 11 by (272k points)
Which of these structures of heart secrete hormones?

(a) Bundle of His

(b) Ventricle

(c) SA node

(d) Atrium

This question was addressed to me in an online quiz.

My question is based upon Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11

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The correct answer is (d) Atrium

Explanation: The atria are the two upper chambers of the heart. The walls of the atria secrete a hormone known as atrial natriuretic factor or ANF. Its function is to reduce blood pressure to maintain homeostasis.

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