embryology - cardio
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- cardio system is dervided from the ?
- mesoderm
- What type of folding results in endocardial tubes lying ventral in embryo?
- lateral and cephalocaudal
- 5 primitive regions of the embryological heart?
-
truncus arterious
bulbus cordis
primitive ventricle
primitive atrium
sinus venosus - Most common type of atrial septal defect?
- patent foramen ovale
- What forms the walls of the patent foramen ovale?
- walls of the septum primum and septum secundum
- What 3 entities make up the atrial septum?
- septum primum, septum secundum, and AV cushions
- What three entities make up the interventricular septum?
- aorticopulmonary septum, right and left bulbar ridges and AV cushions
- truncus arteriosus -->
- ascending aorta and pulmonary trunk
- bulbus cordis -->
-
smooth parts of left and right VENTRICLES
(conus arteriosus) - primitive ventricle -->
- trabeculated parts of left and right VENTRICLE
- primitive atria -->
- trabeculated left and right atria
- sinus venosus -->
- smooth part of the right atrium, coronary sinus, oblique vein
- Aortic arch 1 -->
- maxillary artery
- aortic arch 2
- stapedial and hyoid artery
- 3rd aortic arch
- common carotid and proximal part of internal carotid
- 4th aortic arch
-
left --> aortic arch
right --> proximal part of the right subclavian artery - 6th aortic arch
- proximal part of pulmonary arteries and on left --> ductus arteriosus
- paired dorsal aortae?
- form descending aorta
- cardinal veins?
-
anterior --> internal jugular and superior vena cava
posterior --> infrerior vena cava, common ilioac, azygous and renal veins - vitelline veins?
-
ductus venosus
hepatic sinusoids
inferior vena cava
portal vein
superior and inferior mesenteric veins