ANATOMY OF HEART AND PERICARDIUM
- Right atrium and right ventricle circulates blood only through the lungs (has to do
with pulmonary circulation)
- Atrium is the inflow chamber – receives blood flow
- Ventricle is the outflow chamber
- Superior vena cava = Right brachiocephalic vein + Left brachiocephalic vein
- The most anterior part of the heart is the right ventricle
- The right and left atria are separated by the interatrial septum
- The right and left ventricles are separated by an interventricular septum
- The right atrium opens into the right ventricle through the right atrioventricular
orifice, this orifice is guarded by the tricuspid valve
- The left atrium opens into the left ventricle through the left atrioventricular
orifice, this orifice is guarded by the mitral valve
- The right atrium receives deoxygenated blood mainly from superior vena cava
(brings blood from head and neck and upper limbs) and from inferior vena cava,
this blood passes into the right ventricle. The pulmonary trunk takes the
deoxygenated blood to the lungs
, - The pulmonary trunk divides into right and left pulmonary arteries that carry
blood to the lungs
- Blood oxygenated in the lungs is brought back by pulmonary veins (two at the
right, two at the left) that end in the right atrium. This blood passes to the left
ventricle
- The left ventricle pumps this blood into the aorta. The aorta and its branches
distribute blood to tissues of the entire body
- It is returned to the heart (right atrium) through the vena cava this completing the
circuit
SURFACES OF THE HEART
- Anterior or sternocostal surface
- Posterior or base surface
- Right and left surfaces
, - Diaphragmatic surface
- The two ventricles are separated by the anterior interventricular groove
- The right atria and ventricle are separated by the anterior part of the
atrioventricular groove also called the coronary sulcus
- Right atrium and right ventricle circulates blood only through the lungs (has to do
with pulmonary circulation)
- Atrium is the inflow chamber – receives blood flow
- Ventricle is the outflow chamber
- Superior vena cava = Right brachiocephalic vein + Left brachiocephalic vein
- The most anterior part of the heart is the right ventricle
- The right and left atria are separated by the interatrial septum
- The right and left ventricles are separated by an interventricular septum
- The right atrium opens into the right ventricle through the right atrioventricular
orifice, this orifice is guarded by the tricuspid valve
- The left atrium opens into the left ventricle through the left atrioventricular
orifice, this orifice is guarded by the mitral valve
- The right atrium receives deoxygenated blood mainly from superior vena cava
(brings blood from head and neck and upper limbs) and from inferior vena cava,
this blood passes into the right ventricle. The pulmonary trunk takes the
deoxygenated blood to the lungs
, - The pulmonary trunk divides into right and left pulmonary arteries that carry
blood to the lungs
- Blood oxygenated in the lungs is brought back by pulmonary veins (two at the
right, two at the left) that end in the right atrium. This blood passes to the left
ventricle
- The left ventricle pumps this blood into the aorta. The aorta and its branches
distribute blood to tissues of the entire body
- It is returned to the heart (right atrium) through the vena cava this completing the
circuit
SURFACES OF THE HEART
- Anterior or sternocostal surface
- Posterior or base surface
- Right and left surfaces
, - Diaphragmatic surface
- The two ventricles are separated by the anterior interventricular groove
- The right atria and ventricle are separated by the anterior part of the
atrioventricular groove also called the coronary sulcus
