Download Script for animation

The Circulatory System
Commentary: The circulatory system consists of the heart, a series of blood vessels, and
the blood
Anatomical Structure of the Heart: Schematic Diagram of Pumping Heart
Superior Vena Cava: Large vein that brings de-oxygenated blood from the upper part of
the body to the right atrium
Pulmonary Veins: Bring fresh oxygenated blood from each of the lungs to the left
atrium
Pulmonary Valve: Prevents blood from flowing back into the right ventricle after it has
entered the pulmonary artery
Tricuspid Valve: Prevents blood from flowing back into the right atrium after it has
entered the right ventricle
Inferior Vena Cava: Vein that brings deoxygenated blood from the lower part of the
body to the right atrium
Aorta: Brings oxygen-rich blood from the left ventricle to the body
Pulmonary Arteries: Bring oxygen-poor blood to the right or left lung
Aortic Valve: Prevents blood from flowing back into the left ventricle after it has entered
the aorta
Mitral Valve: Prevents blood from flowing back into the left atrium after it has entered
the left ventricle
Additional Labels on the Diagram (w/o descriptions):
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle
Septum
Blood Circulation throughout the Heart and the rest of the Body
Commentary: The circulatory system is divided into two pathways. The pathway that
carries blood between the heart and the lungs is the pulmonary circulation. The
pathway that carries blood between the heart and the rest of the body is the systemic
circulation.
Arteries: Blood vessels that carry blood from the heart to other parts of the body
Veins: Blood vessels that bring blood back to the heart from other parts of the body
Schematic Diagram of Blood Circulation:
Possibly same heart diagram of basic heart as previous animation but with animation of
deoxygenated(blue)/oxygenated(red) blood flowing through the heart.
Stimulation of the Heart: Heartbeat
Commentary: The heart’s natural pacemaker is the sinoatrial (SA) node, which sends
electrical impulses to the cardiac muscles of the atria to cause atrial contraction. The
impulses are then picked up by the atrioventricular (AV) node, which sends the
impulses to muscle fibers in the ventricles, causing contraction of ventricles. Artificial
pacemakers are necessary for patients who have irregular heartbeats due to problems with
the sinoatrial (SA) node.
Schematic diagram of Electrical Stimulation in a Heartbeat:
Possibly same heart diagram of basic heart but with a new animation popping up to show
arrows of stimulation coming from the SA node into the right atrium and then these
impulses are picked up by the AV node.