Sections of the Primordial Heart
Septums of the Heart
Fetal Circulation
Pericardium
Surfaces and Borders of the Heart
100
This section develops right and left horns
What is the sinus venosus?
100
This structure is visible in the adult heart as a remnant of the foramen ovale.
What is the fossa ovalis?
100
This shunt bypasses the lungs by sending blood from the right atrium to the left atrium
What is the foramen ovale?
100
These nerves "keep the diaphragm alive.
What are C3-C4-C5?
100
This vein drains blood supplied to heart tissue directly into the right atrium.
What is the coronary sinus?
200
This section becomes the rough walled parts of both atria
What is the primitive atrium?
200
This septum grows after the septum primum, and creates a one-way valve from right atrium to left atrium
What is the septum secundum?
200
This shunt becomes the ligamentum arteriosum after birth.
What is the ductus arteriosus?
200
This is the only thing between the parietal and visceral layers of pericardium
What is a thin layer of serous fluid?
200
These two sulci separate the two ventricles.
What are the interventricular sulci?
300
This section contributes to the formation of the roots of the pulmonary trunk and ascending aorta
What is the truncus arteriosis?
300
This septum grows cranially from the floor of the primitive ventrical.
What is the interventricular septum?
300
This shunt in the fetal circulatory system bypasses the liver
What is the ductus venosus?
300
This layer of pericardium contains the phrenic nerve.
What is the fibrous pericardium?
300
This "groove" is where the right coronary artery starts.
What is the atrioventricular groove (or coronary salcus)?
400
A congenital defect in the growth of this section could lead to a VSD.
What is the primitive ventricle.
400
This septum contains the foramen secundum.
What is the septum primum?
400
Decreased pressure in these organs is responsible for increased flow back to the heart immediately after birth.
What are the lungs?
400
These two types of innervation are supplied by the phrenic nerve to the diaphragm.
What are somatic sensory innervation and somatic motor innervation?
400
Papillary muscles are located in these sections of the heart.
What are the ventricles?
500
This section becomes the proximal end of the pulmonary trunk.
What is the bulbis cordis?
500
This structure divides the bulbus cordosis and the truncus arteriosis into the pulmonary trunk and the aorta.
What is the articopulmonary septum?
500
This structure is continuous with the round ligament of the liver after birth.
What is the ligamentum venosum
500
These vessels travel with the phrenic nerve through the pericardium.
What are the pericardiacophrenic vessels?
500
These muscular pouches are superior to the atria.
What is the auricles?
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