Final answer:
The hormone produced by the heart is atrial natriuretic hormone (ANH), which helps regulate blood volume and pressure. Other hormones affecting the heart include epinephrine, angiotensin II, ADH, thyroxine, and estrogen.
Step-by-step explanation:
The hormone produced by the heart is known as atrial natriuretic hormone (ANH) or peptide, which is secreted by the atrial cells of the heart. The primary function of ANH is to help regulate blood volumes and pressures by signaling the kidneys to excrete excess sodium and water, thus reducing blood volume and pressure. In addition to its vascular effects, ANH opposes the action of the renin-angiotensin-aldosterone system, which usually acts to increase blood pressure.
Other hormones that affect the heart include epinephrine, which increases heart rate and contractility; angiotensin II, which also increases blood pressure; antidiuretic hormone (ADH), which promotes water retention; and thyroxine, which increases both heart rate and contractility. Additionally, estrogen contributes to vascular health in both women and men.