Flashcards in Cardiovascular Anatomy Deck (101)
What germinal layer does the heart develop from?
What region does the heart develop in?
What structure is a coalescence of angioblastic tissue that forms first in heart development
When the endocardial tubes fuse, what do they form?
The primitive heart tube
When the heart tube forms on its self, what dilations form?
Atrial, ventricular, bulbis cordis
After the primitive heart tube forms, what forms at the proximal end?
After the primitive heart tube forms, what forms at the distal end?
What divides the atrial dilation in the 5th week?
What hole appears in the upper part of the septum primum?
What appears to the right of the septum primum?
The ventricular septum forms upwards towards what structure?
The truncus arteriosus divides into what? When does this happen?
Aortic and pulmonary tubes, 7th and 8th week
When the truncus arteriosus folds, what position does the pulmonary artery lie in initially?
What is the connection between the left pulmonary artery and arch of the aorta?
When the ductus arteriosus closes, what is it called?
What is the most common congenital anomaly that can occur during heart formation?
What is the most common atrial septal defect?
Ostium secondum defect
If the ductus arteriosus remains open, what is it called?
Patent ductus arteriosus
ASD, VSD, and PDA are all what type of shunts?
Left to right
What type of shunt results in cyanosis?
Right to left
Fallot's tetralogy results in what defects?
Pulmonary stenosis, Right ventricular hypertrophy, VSD, Dextropositioning of the aorta
Where are the borders of the heart?
3rd right costal cartilage 2 cm from sternum
6th right costal cartilage 2 cm from the sternum
2nd left costal cartilage 2 cm from the sternum
5th left intercostal space 7-9 cm from the midsternal line
What are the origins of the right atrium?
Sinus venosus and from the true atrium
Where is the rough part of the right atrium formed from?
Where is the smooth part of the right atrium formed from?
What separates the smooth and rough part of the right atrium?
What openings are found in the the right atrium?
For the SVC, IVC, Coronary sinus; tricuspid valve
What is the ovale depression interarterial septum?
What is the fossa ovale a remnant of?