Anat/Path Specimens Flashcards
Crista terminalis
Smooth muscular ridge in the superior part of the RA that separates the musculi pectinati and the RAA from the smooth surface of the RA
Where are the pectinate muscles in the LA?
Confined to the LAA
How many papillary muscles in the LV vs RV?
RV: multiple
LV: 2
Most common congenital heart defect?
VSD
3 types of VSDs
Perimembranous
Muscular
Juxta-arterial
Why would you place a pulmonary band?
For infants with high flow to the PA
Ex: in a VSD
Trying to reduce the flow to the lungs to prevent/reduce pulmonary hypertension
AVSDs are mostly found in patients with…
Down syndrome
4 things in ToF
Spectrum of RV outflow tract obstruction (pulmonary stenosis/atresia, infundibular stenosis)
VSD
Overriding aorta
RV hypertrophy
How to treat ToF
Surgically
Enlargement of RV outflow tract and closure of VSD
- Classic BT shunt
2. Waterston shunt
- Right subclavian to R PA
2. Ascending aorta to R PA
Transposition of the great arteries
Atriventricular concordance with ventriculoarterial discordance
There has to be communication at the atrial level for it not to be fatal
Truncus arteriosus
Single arterial outlet from the ventricles with a single valve
Single vessel gives rise to the coronaries, the PAs and the ascending aorta
Truncal valve is usually dysplastic
VSD under valve
Hypoplastic left heart syndrome
Spectrum of abnormally small left-sided heart structures
Aortic valve, LV, MV, ascending aorta
Most common type of congenital heart disease that causes death in the neonatal period (death occurs with the ductus arteriosus closes)
NEED a heart transplant
