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The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrie...
This animation features the heart and circulatory system and how they work. For more information, visit: http://www.mayoclinic.com/health/heart-disease/DS0...
In this captivating video, we take an in-depth journey into the human cardiovascular system through a detailed 3D labeled animation.
3 sie 2015 · We will tell you about the general structure of the cardiovascular system, how it works in dogs, common diseases, and common diagnostic tests performed in dogs to evaluate the heart and blood vessels.
What makes your dog’s heart tick? A dog’s four-chambered heart is a complex, synchronized network of electrical circuits that weaves through the cardiac muscle. The heart is the pump at the center of the circulatory system.
The cardiovascular system comprises the heart, veins, arteries, and capillary beds. The atrioventricular (mitral and tricuspid) and semilunar (aortic and pulmonic) valves keep blood flowing in one direction through the heart, and valves in large veins keep blood flowing back toward the heart.
The venous system will bring more blood into the heart chambers during diastole (preload) so that the heart can eject more blood with each beat (increased stroke volume). In addition, the heart will beat faster (increased heart rate).
