The prime focus of this sqadia.com physiology lecture is insulin, glucagon and diabetes mellitus. This V learning lecture sheds light upon the hormonal regulation, islets of Langerhans, insulin and its metabolic effects. Additionally, action of insulin, control of insulin secretion, glucagon, somatostatin along with a common medical condition termed as diabetes mellitus has been explicated quite expansively.
In this video lecture, educator describes the hormonal regulation by defining anabolism and catabolism. Educator introduces the topic and islets of Langerhans. Insulin is a peptide hormone produced by beta cells of the pancreatic islets. It regulates the metabolism of carbohydrates, fats and protein. It has many metabolic effects on liver, adipose tissue, brain, fat metabolism, protein metabolism.
Sympathetic nervous system inhibits insulin secretion, parasympathetic stimulation on pancreas increases insulin secretion.
Glucagon is a peptide hormone with single chain of 29 amino acids. It has its metabolic effects on glucose, fats, insulin and liver. Different factors stimulate and inhibit glucagon.
Diabetes mellitus (DM), is a group of metabolic diseases in which there are high blood sugar levels over a prolonged period. It has two major forms. It can be diagnosed through different methods. Treatment of DM includes medication and surgery.