Blood flow through the heart
to get the oxygenated blood to the rest of the body
Goal of the LEFT SIDE of the heart
The left ventricle contracts to pump the blood through the _______ ________. This semilunar valve opens into the aorta, which sends the oxygenated blood out to the body.
Aortic valve
blood going AWAY from the heart
Artery
Superior/inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonic valve, pulmonary artery, lungs, pulmonary veins, left atrium, bicuspid valve, left ventricle, aortic valve, aorta --> into the rest of the body
Blood flow sequence
It then moves to the left and right bundle branches in the interventricular septum
Bundle branches
to get oxygen in the blood
Goal of the RIGHT SIDE of the heart
1) Pulmonary vein 2) Left atrium 3) Bicupsid valve (a.k.a mitral or altrio-ventricle valve) 4) Left ventricle 5) Aortic valve 6) Aorta
LEFT SIDE - oxygenated red blood
From the ______ ____________, the oxygenated blood goes through the aorta and into the rest of the body. The _____ __________ is the thickest and the strongest of the four chambers because it must push the blood out to the aorta and through the body
Left Ventricle
Pulmonic valve to the pulmonary artery
On the right side of the heart, blood flows from the right ventricle to the...?
Right Atrium --> Right Ventricle --> Left atrium --> Left Ventricle
Order of chambers
the second valve that the blood encounters. This valve opens to allow the blood to enter the pulmonary artery and flow to the lungs. This is a semilunar valve, meaning that it resembles a half moon.
Pulmonary valve
1) Superior/Inferior Vena Cava 2) Right Atrium 3) Tricuspid valve 4) Right Ventricle 5) Pulmonic Valve 6) Pulmonary Artery
RIGHT SIDE - unoxygenated blue blood
The receiving chamber of the heart. Takes in oxygen-poor blood from the superior vena cava and the inferior vena cava and then sends it to the right ventricle
Right Atrium
Receives oxygen-poor blood from the right atrium and sends the blood to the pulmonary artery and on to the lungs for reoxygenation
Right ventricle
Bicuspid Valve
The blood flows on the left side from the pumonary vein to the left atrium through the ________ ___________?
False. The pulmonary artery takes unoxygenated blood away from the heart to the lungs to become oxgyenated and then back through the pulmonary vein.
True or False: Pulmonary veins take unoxygenated blood away from the heart
True
True or False: The bicuspid valve is located on the left side of the heart
False
True or false: The atriums are located below the ventricles
True
True or false: There are four chambers in the heart
Four valves within the heart act as "gatekeepers" to manage the flow of blood. Placed at the venticles' entrances and exits, these four valves ensure that the blood moves only forward and does not flow back into the chambers when the heart muscle relaxes... 1) Tricuspid valve 2) Pulmonary valve 3) Mitral valve 4) Aortic valve
Valves of the heart
blood going TOWARDS the heart
Vein
Pulmonary vein
What part of the heart delivers oxygenated blood to the heart?
Aorta
What part of the heart delivers richly oxygenated blood to the body?
Pulmonary artery. The pulmonary artery delivers unoxygenated blood to the lungs and then it is taken through the pulmonary VEINS back to the heart.
What part of the heart delivers unoxygenated blood to the lungs?
The bundle branches carry the impulse to the __________ _______ in the ventricular myocardium, which stimulates ventricular systole (the contraction of the ventricles). There is a brief pause between impulses before the process begins again. This is not an impulse but the lack of one.
purkinje fibers
means "lungs". So whenever, see "pulmonary" or "pulmonic" think of the lungs
pulmonary
The contraction from the SA node stimulates the ________________ ______.
Atrioventricular node (AV node)
A = before V. Atriums are on top of the ventricles.
Atriums = always on top of the ventricles
The impulse begins at the __________ _____ (a.k.a. the pacemaker) and travels directly to the atria, which then contract and force blood into the ventricles
Sinoatrial node (SA node)
The stimulation goes to the atrioventricular bundle (a.k.a. the ________ __ ___)
Bundle of His
1) Right Atrium 2) Right Ventricle 3) Left Atrium 4) Left Ventricle
Chambers of the heart
After being oxygenated by the lungs, the blood goes back to the heart through the pulmonary veins and into the ______ __________. In turn, the _______ _________ sends the oxygenated blood to the left ventricle.
Left atrium
a.k.a. bicuspid valve (has two cusps or flaps). It is on the left side of the heart, which sits between the left atrium and the left ventricle. Just as the AV does, the _______ _______ keeps the blood from flowing backwards into the left atrium.
Mitral valve
"Always TRY it before you BUY it." Tri and Bi. Tri comes first.
Tricupsid valve comes before the bicuspid valve
a.k.a. the atrioventricular valve (AV). It opens to allow the deoxygenated blood to flow from the right atrium into the right ventricle. This is the only valve with three cusps or flaps.
Tricuspid valve
