Cardiac Flashcards
Term describing the position of the four chambered heard which is primarily in the left hemithorax
Levoposition
Indicates that the apex of the heart is to the right of the midline
Dextrocardia
Levo- left
Dextroposition - means that the heart is displaced to the right lying primarily in the right hemithorax with no anatomic alteration in the heart itself
Means that all major organs are reversed or mirrored from their normal positions
Situs inversus totalis
This means there or components of situs inversus and situs totalis
Situs ambiguous
A situation where some paired structures on opposite sides of the body are symmetrical mirror images of each other
Isomerism
Each lung contains only two lobes and hyparterial bronchi. Most common associated chd is atrial septal defect or anomalous pulmonary venous return.
Left isomerism
There are bilateral minor fissures and three lobes in each lung with associated cardiac anomalies that are severe and more complex
Right isomerism
The right atrium is divided into two portions: the smooth posterior wall develops from the ____ with the svc and ivc in continuity posteriorly
Sinus venosus
The trabeculated anterior wall of the right atrium is derived from
Embryonic right atrium
Is a smooth thickened muscular ridge that runs from the mouth of the svc and fades inferiorly to the mouth of ivc
Crista terminalis
The medial or posterior wall of the right atrium is the interatrial septum which contains a smooth central dimpled area called the
Fossa ovalis
The svc has a free opening while the ivc is partially guarded by this ___ valve which can be occasionally absent or perforated
Eustachian valve
The coronary sinus enters the right atrium anterior and medial to the ivc. This opening between the or refers of the ivc and the tricuspid valve is guarded by
Thebesian valve
Most anterior chamber abutting the sternum
Right ventricle
