During pregnancy, the fetal lungs are not used for breathing—the placenta does the work of exchanging oxygen and carbon dioxide through the mother's circulation. With the first breaths of air the baby takes at birth, the fetal circulation changes.
18.5 Pacemaker cells trigger action potentials throughout the heart: Human Anatomy and Physiology
Heart Diagram: Right/left Atria, Right/left Ventricles, Pulmonary Trunk, Aorta, Superior/inferior Vena Cavae, Pulmonary Veins, Coronary Sinus, Right/left Atrioventricular valves (tricuspid + bicuspid), Chordae Tendinae, Interatrial Septum, Interventricular Septum, Aortic and Pulmonary Semilunar Valves, Coronary Arteries and Cardiac Veins
raspstudying: 11.4.2015 - Here are some more notes with the same style as the earlier one! This time about the heart and circulation system. :) Happyhappy weekend for everyone!
anatomy of the heart | HeartFacts.co.uk » Heart physiology/anatomy
Human Anatomy and Physiology Diagrams: Heart Anatomy
Heart & Circulatory System...wish I had this months ago when the kids were learning about this!!!
circulation through the body | Diagram of the Circulatory system
cardiac cycle PQRST heart rhythm interpretation More
Circulatory system-now lets put some defects in there