Embryologic origins Flashcards
smooth part of left and right ventricles
bulbus cordis
trabeculated left and right atria (and auricle)
primitive atrium
smooth part of the left atrium
primitive pulmonary vein
Maxillary arteries
1st arotic arch
ligaments, bones, tendons, and cartilage
somatic mesoderm (from lateral plate mesoderm)
Sinus Venarum
sinus venosus
truncoconal cushions
neural crest
Veins of the lower extremity ; 4th part of IVC
posterior cardinal
Pulmonary arteries and ductus arteriosus
Left 6th arch
Conus arteriosus
bulbus cordis
heart
cardiac splanchnic mesoderm
coronary (AV) groove
AV sulcus
Valve of the IVC
Right horn of the sinus venosus
outflow tract inside the heart
conus cordis
Renal, adrenal, gonadal
Lateral splanchnic system
Common carotid artery
3rd arch
Lung Bud
foregut
Lungs at this stage share blood supply with foregut. The blood supply is visceral splanchnic arteries
Annulus fibrosus
sclerotome
Left auricle
Primitive atrium
visceral pleura
splanchnic mesoderm
Dura
sclerotome
deep back muscles
Epimere (from dorsal myotome)
Pulmonary veins
visceral splanchnic arteries in the lungs
Right subclavian artery
right side of 4th arch; 7th intersegmental art
What does parietal pericardium develop from?
Pleuropericardial folds
left and right cusps of semilunar valves
truncoconal neural crest cells cardiogenic splanchnic
Ductus venosus
umbilical veins
Arch of aorta
left side of 4th arch
What embryonic structure does the membranous Interventricular septum come from?
Truncoconal septum
What type of blood flows through the coronary sinus into the heart? Where in the heart?
Deoxygenated blood from the heart into the right atrium
Ascending aorta and pulmonary trunk
truncus arteriosis
ligamentum arterious
ductus arteriosus
What does the moderator band connect?
Interventricular septum to the anterior papillary muscle
superior vena cava
right common and anterior cardinal vein
Nucleus pulposus
notochord
Left atrium
Pulmonary veins ( majority of wall formed through intussusception) and the primitive atrium (left auricle)
Left ventricle
primitive ventricle
anterior cardinal veins
veins of the head and upper extremity; SVC
smooth part of the right atrium
right horn of sinus venosus
Pia, arachnoid, &. filum terminale
Neural Crest
fossa ovalis
foramen ovale
Right atrium
parts of sinus venosus and the primitive atrium (which leads to pectinated part of RA)
Pectinated muscle of RA
primitive atrium
visceral pericardium (epicardium)
splanchnic mesoderm
Azygous system
supracardinal
Stapedial arteries
2nd arch
trabeculated left and right ventricles
primitive ventricle
posterior cardinal veins
Veins of lower extremities; 4th part. of IVC
Brachiocephalic artery
aortic sac
epidermis, sweat glands, hair, and nails
surface ectoderm
Aortic valve
Bulbus cordis
Ribs and rib cartilage
sclerotome
parietal pleura
somatic mesoderm
Portal system; hepatic veins;
vitelline veins
muscles of upper limb
hypomere (from ventral myotome)
skeletal muscle
myotome
diaphragm (central tendon + muscles)
septum transversum
parietal pericardium (fibrous and serous)
somatic mesoderm
lung endoderm lining
endoderm
septum, membranous IV septum, AV and semilunar valves
endocardial cushion
Veins of the head and upper extremities; SVC
anterior cardinal
Lung smooth muscle, blood vessels, connective tissue
splanchnic mesoderm
definitive aortic arch and brachiocephalic artery
aortic sac
Coronary sinus
left horn of. the sinus venosus
Outflow tracts
distal end of bulbus cordis
Right ventricle
inferior bulbus cordis
Membranous interventricular septum
neural crest
phrenic nerve
nerves branches from c3, 4, 5 merging at septum transversum
vertebrae
sclerotome
