cardiac anatomy ish Flashcards
(34 cards)
where is the apex beat felt
5th intercostal space, left midclavicular line
what forms the right heart border
SVC - right atrium
what forms the left heart border
aortic knuckle, left pulmonary artery, La appendage, left ventricle
what forms the anterior side of the heart
mainly RV
what forms the posterior side of the heart
LA and pulmonary veins
what is the mediastinum
area between right and left pleura
where is the division between superior and inferior mediastinum
plane between sternal angle and T4/5
what is the division between anterior/ middle and posterior mediastinum
pericardium
what are the 2 layers of pericardium
fibrous parietal and visceral layers
what is the pericardial space
potential space
what is cardiac tamponade
rapid collection of pericardial fluid - heart is restricted and filling impaired
what is the purpose of pleural reflection
allows drainage of pericardial fluid from left of xiphisternum
what do papillary muscles attach to and how
attach to AV valves via chordae tendinea
what are papillary muscles part of
ventricles
where do the 4 pulmonary veins drain
into LA
what does the coronary sinus do
drains blood from heart muscles into RA
RA structurr=e
has smooth and trabeculated portions, separated by cristae terminalis
what are the smooth parts of the RA from
sinus venosus
what are the trabeculated parts of RA from
original atrium
what is the fossa ovalis
remains of foramen ovale
where do coronary arteries arise
from aortic root sinuses
what does the left main coronary artery divide into
left anterior descending and circumflex branches
where does the LAD run
anterior interventricular groove
what branches does the LAD give off
septal and diagonal branches to septum and left ventricular myocardium
