Circulation: Heart, cardiac cycle, blood pressure

A blood clot is a seal generated by the blood to stop bleeding from a cut. While they are necessary for stopping bleeding, if they form in the wrong place, they can block blood vessels and prevent blood from reaching crucial organs such as the brain, heart, and lungs. Anticoagulants work by interfering with the […]

Angiotensinogen is a protein that is created and released by the liver. A kidney enzyme, renin, breaks down this to form angiotensin I. Angiotensin II, an important precursor to this hormone, is not known to have any specific biological function in itself. Angiotensin II is metabolised by angiotensin-converting enzymes in the lungs and kidneys after

Angiotensinogen is a protein that is created and released by the liver. A kidney enzyme, renin, breaks down this to form angiotensin I. Angiotensin II, an important precursor to this hormone, is not known to have any specific biological function in itself. Angiotensin II is metabolised by angiotensin-converting enzymes in the lungs and kidneys after

Introduction  Angiotensin is a hormone of the human body that is responsible for increasing blood pressure by vasoconstriction of vessels. This hormone is protein-based.  The liver plays an important role in its formation. The liver secretes angiotensinogen, the inactive form of the hormone. The enzyme renin, secreted by the kidney, activates angiotensinogen to Angiotensin. The

Angina pectoris is considered a symptom of coronary artery disease. It is a medical term which refers to sudden chest discomfort, pressure or pain. This occurs due to low blood supply to the muscles of the heart because of the blockage in the arteries of the heart. Due to insufficient blood supply, cardiac cells lack

Introduction This is a type of chest pain caused by the reduction in the blood supply to the heart muscle. Angina can be either stable (happens during exercise and lasts less than five minutes) or unstable (happens during exercise and lasts more than five minutes but is relaxed during rest). One of the most prevalent

Afterload is defined as the force against which the contraction of the ventricle occurs. It can also be considered as the end load against which the blood is ejected when the heart contracts. It thus results in ventricular resistance, particularly of the arteries and by the physical characteristics like the viscosity of blood and mass

Angiotensin is a peptide hormone that stimulates blood vessels to narrow and blood pressure to rise. It is a component of the blood pressure-controlling renin-angiotensin system. Angiotensin increases salt storage even in my kidneys by stimulating aldosterone production from the adrenal cortex. Angiotensin is indeed a hormone and even a dipsogen, an oligopeptide. It is