ANATOMY

Detailed explanation-1: -Atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) are secreted from the cardiac atria and ventricles, respectively. ANP signals in an endocrine and paracrine manner to decrease blood pressure and cardiac hypertrophy.

Detailed explanation-2: -For example, atrial natriuretic peptide (ANP) is a small peptide secreted by the heart upon atrial stretch and high systemic blood pressure.

Detailed explanation-3: -Atrial natriuretic factor: a hormone produced by the heart.

Detailed explanation-4: -ANP and BNP are secreted by the heart and act as cardiac hormones. Human ANP has three molecular forms: -ANP, -ANP, and proANP (or -ANP).

Detailed explanation-5: -The cardiac natriuretic peptides, ANP (atrial natriuretic peptide) and BNP (brain natriuretic peptide), are secreted by the heart in proportion to cardiac transmural pressures. They possess a wide range of effects in multiple tissues facilitating overall pressure/volume homoeostasis.