The Atrial Wall of Our Heart Secretes

1) GIP

2) ANF

3) ADH

4) CCK

Answer:2) ANF

Explanation: The atrial wall of our heart secretes ANF or atrial natriuretic factor. It is a peptide hormone and is also known as ANP or atrial natriuretic peptide. It causes vasodilation. It is released when blood pressure increases and reduces blood pressure by dilating blood vessels. ADH is released from the posterior pituitary gland, whereas GIP and CCK are secreted by endocrine cells present in the gastrointestinal tract.

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