Cardio Anatomy Flashcards
How to tell large artery from muscular artery
LA: has fenestrations/ elastic lamelle in medium artery. Only has internal membrane.
Muscular arteries: Internal and external membrane.
Large artery vs large vein
A: thick media
V: Thin media, thick adventitia.
Large vein vs medium vein
No vasa vasorum.
What do neural crest cells make
Aorticopulmonary septum
Membranous IVC
Semilunar valves.
What does pharyngeal mesoderm make
BC and TA,
Caudal Atria
Sinus venosus
What does splanchnic mesoderm make
Primary heart field (atria + LV +portion of RV)
when is lateratity the most critical?
Days 16-18
What does bulbus cordis make?
Trabeculated RV
Ventricular outflow tracts (conus cordis)
(Truncus arteriosus) aorta, pulmonary trunk
Where does ASD most likely happen
septum secundom failure -> foramen secundum failure.
1st Aortic Arch
Maxillary
2nd Aortic Arch
Hyoid/ Stapedial
3rd arch
Common Corotid + internal carotid
4th arch
Left = part of the aortic arch; Right= right subclavian
6th
Left = left pulmonary artery, ductus arteriosus Right = right pulmonary artery
Pectinae vs trabeculae
Pectinate only in the RA, trabeculea in the ventricle
right horn sinus venus makes?
smooth parth of the right atrium
left horn makes
coronary sinus
Vitteline becomes
hepatic IVC, portal vein (via anastomotic)
preganglionic motor fibers are…
myelinated
sympathetic levels
T1-L2
Where do symapthetic preganglionic cell bodies of the heart reside?
Lateral horn T4-T6
Where do the sympathetic post ganglionic cells of the heart have cell bodies?
T1-T4 of the sympathetic change ganglia.
Is the vagus nerve presynaptic or post-synaptic?
Presnaptic parasympathetic.
Do the greater splanchnic nerves synapse at the sympathetic chain?
No, pass through and synapse at the mesentyric chain.
