System: Cardiovascular System

Explore how the heart’s conduction system controls the timing of ventricular contraction and how these electrical events are represented on an ECG. This video breaks down the sequence of depolarization,…

Continue examining hormonal regulation of blood pressure by exploring the roles of cortisol, epinephrine, and the sympathetic nervous system. This video explains how these factors contribute to short- and long-term…

Explore how hormones regulate blood pressure through mechanisms involving the renin-angiotensin-aldosterone system, antidiuretic hormone, and atrial natriuretic peptide. This video explains how these hormonal pathways interact to control fluid balance,…

Explore the specific functions of arachidonic acid metabolites such as prostaglandins, thromboxanes, and leukotrienes in regulating inflammation and vascular responses. This video explains how these mediators influence processes like fever,…

Explore the fundamentals of inflammation, including its purpose, key cellular players, and the sequence of events in the inflammatory response. This video introduces the classic signs of inflammation and the…

Delve deeper into inflammation by examining the chemical mediators that drive the inflammatory process, such as histamine, prostaglandins, and cytokines. This video explains how these molecules coordinate vascular changes, immune…

Discover the anatomical structure of the liver and its unique dual blood supply from the hepatic artery and portal vein. This video explains the liver’s lobes, segments, and vascular pathways…

Explore how cardiac muscle contraction is triggered and coordinated, including the role of calcium ions and excitation-contraction coupling. This video also covers pacemaker activity and how specialized cells in the…

Explore the physiology of cardiac myocytes, focusing on their electrical properties and how membrane potentials regulate heart contractions. This video explains ion channel activity, resting potential, and the phases of…

Get an introduction to myology with a focus on the three muscle types: skeletal, cardiac, and smooth muscle—their structure, function, and control mechanisms. This educational video lays the foundation for…