| Heart
Anatomy |
The
superior vena cava and inferior vena cava (not
shown) bring deoxygenated blood from the body into the
right atrium, from which it enters the right ventricle.
Blood leaves the right ventricle via the pulmonary trunk.
The pulmonary trunk delivers deoxygenated blood to the lungs.
It splits into the right and left pulmonary arteries
which go to the right and left lung.
Oxygenated blood from the lungs re-enters the heart via the
pulmonary veins (not shown) on the posterior aspect of the
left atrium. From here it enters the left ventricle
and is delivered to the body via the aorta.
The right and left coronary arteries arise from the base of
the aorta and are embedded in the epicardial fat
on the surface of the heart. Branches shown are the right
coronary artery, marginal artery (right)
and left anterior descending arterty (left).
The left anterior descending artery lies in the anterior interventricular
sulcus, which separates the left and right ventricles.
The aortic branches shown are the left common carotid
artery to the head and neck, the left subclavian
artery, to the left arm and body wall. The brachiocephalic
trunk divides into the right carotid and subclavian
arteries.
The ligamentum arteriosum is the fibrous remnant
of the ductus arteriosus which allows blood to bypass the lungs
in the developing fetus. The ductus closes at birth normally
within two weeks. |
| |
|
|
|
| |
All images copyright ©2001-2009
medicalartstudio.com.
All Rights Reserved. All Illustrations on this site are owned
by the
artists and are protected by US and International Copyright
Laws. |
| about
us / contact
us |
|
|
|