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Endocardium heart valves. IMAIOS and selected third parties, use cookies or similar technologies, in particular for audience measurement. Cookies allow us to analyze and store information such as the characteristics of your device as well as certain personal data e.
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The website cannot function properly without these cookies, which is why they are not subject to your consent. A internal image of a ovine right ventricle, viewed superiorly. The moderator band is also visible, originating at the base of the septal papillary muscle and inserting near the anterior papillary muscle. A closer look at the apex of a ovine right ventricle. The trabeculae carneae are visible and are noticeably fewer and courser compared to the hearts of humans.
A superior view of the septal papillary muscle and moderator band in a ovine heart. The moderator band originates in the septal wall by the septal papillary muscle, crosses the right ventricle as a free arc, and inserts near the anterior papillary muscle.
The posterior half of the left ventricle of a plastinated ovine heart. Ovine hearts have a single anterior papillary muscle and may have one or two posterior papillary muscles in the left ventricle 1. This particular heart has one posterior papillary muscle, visible here, supporting the mitral valve through its chordae tendineae.
The anterior half of the left atrium of a plastinated ovine heart. Ovine hearts have one anterior papillary muscle and may have one or two posterior papillary muscles 1. The anterior papillary muscle and its chordate tendineae supporting the mitral valve can be seen.
A internal view of the ovine left ventricle. The camera is positioned in the left atrium and is looking inferiorly into the ventricle. The ovine heart has one anterior papillary muscle and one or two posterior papillary muscles supporting the mitral valve 1.
This particular heart has one anterior papillary muscle and one papillary muscle. A view of the apex within the left ventricle of a ovine heart. The hearts of sheep, like the other animals here, have much coarser trabeculae carneae than the hearts of humans. Also visible are the conduction bands that help propagate the signal for contraction through the left ventricle. Porcine The trabeculae carneae of the right and left ventricles in the porcine heart are both fewer and coarser compared to those seen in the human heart 3, 8.
The moderator band is present in the right ventricle as a free arching structure that originates on or near the septal papillary muscle and inserts into the body or head of the anterior papillary muscle 1. In the right ventricle, the porcine heart has a single anterior papillary muscle, one to three posterior papillary muscles and one to three septal papillary muscles 1.
In the left ventricle, the porcine heart has a single anterior papillary muscle and a single posterior papillary muscle. The right ventricle inflow tract in the porcine heart is significantly shorter than the human heart but is similar in size to canine and ovine hearts 1.
The right ventricle outflow tract however is similar in length to the human heart as well as to canine and ovine hearts. The left ventricle inflow tract is similar in length to human, canine and ovine hearts 1. The left ventricle outflow tract is shorter than in the human heart but similar in length compared to canine and ovine hearts 1.
A plastinated porcine heart cut coronally into a anterior half left and a posterior half right. The trabeculae carneae, papillary muscles and overall structure of the right and left ventricle can be seen. The trabeculae carneae of swine hearts are noticeably fewer and coarser compared to humans 1. The posterior half of the right ventricle of a plastinated porcine heart. Swine have a single anterior papillary muscle, one to three posterior papillary muscles and one to three septal papillary muscles in the right ventricle 1.
This particular heart has one posterior papillary muscle and one anterior papillary muscle visible here. The anterior half of the right ventricle of a plastinated porcine heart. This particular heart has one septal papillary muscle and part of its one anterior papillary muscle visible here. Though the moderator band has been broken in this heart, the origin on the septal papillary muscle and the insertion on the anterior papillary muscle are visible.
A internal view of a porcine right ventricle. The camera is positioned in the right atrium and is looking inferiorly into the ventricle. The right ventricle of the swine heart has one anterior papillary muscle, one to three posterior papillary muscles and one to three septal papillary muscles 1. This particular heart has one anterior, one posterior and one septal papillary muscle.
Also visible is the moderator band which is present in swine hearts as a free arching structure that originates on or near the septal papillary muscle and inserts on the anterior papillary muscle 1.
A internal view of the apex of a porcine right ventricle. The trabeculae carneae of the swine heart, like the hearts of dogs and sheep, are coarser than in the hearts of humans 1. The posterior half of the left ventricle of a plastinated porcine heart. Swine have one anterior papillary muscle and one posterior papillary muscle supporting the mitral valve 1.
The posterior papillary muscle is visible here. The anterior half of the left ventricle of a plastinated porcine heart. Porcine hearts have one anterior papillary muscle and one posterior papillary muscle supporting the mitral valve 1. The anterior papillary muscle is visible here. A internal view of the left ventricle of a porcine heart.
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