Biology teacher

  19.3 Hormones of Heart, Kidney and Gastrointestinal Tract Easy NEET Notes (Line-by-Line Explanation) Introduction Original Idea: Some tissues other than endocrine glands also secrete hormones. Easy Explanation: We usually study hormones secreted by endocrine glands like pituitary, thyroid, adrenal etc. But some other organs and tissues also produce hormones. These hormones help in regulating important body functions. Hormones of Heart Atrial Natriuretic Factor (ANF) Line: “The atrial wall of our heart secretes a peptide hormone called atrial natriuretic factor (ANF).” Explanation: The atria are the upper chambers of the heart. Their walls produce a hormone called ANF . ANF is a peptide hormone (made of amino acids). Function of ANF Line: “ANF decreases blood pressure.” Explanation: ANF helps to lower high blood pressure. It maintains normal blood circulation. Line: “When blood pressure is increased, ANF is secreted which causes dilation of blo...