What do you know about the embryology of atrial septal defect ?
There are seven septa involved in the partitioning of the heart.
Three form passively (i.e. when an area of tissue forms a septum because of the rapid growth of con-tiguous tissue); these include the septum secundum at the atrial septum, the mus-cular portion of the ventricular septum and the aorticopulmonary septum.
The actively formed portions of the septa of the heart include the septum of the atrio-ventricular canal, the conal septum and the truncal septum.
The atrial septum begins as a passively formed septum; however, active growth from the endocardial cushions completes the septum.
Lexo edhe:
There are seven septa involved in the partitioning of the heart.
Three form passively (i.e. when an area of tissue forms a septum because of the rapid growth of con-tiguous tissue); these include the septum secundum at the atrial septum, the mus-cular portion of the ventricular septum and the aorticopulmonary septum.
The actively formed portions of the septa of the heart include the septum of the atrio-ventricular canal, the conal septum and the truncal septum.
The atrial septum begins as a passively formed septum; however, active growth from the endocardial cushions completes the septum.
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Lexo edhe: