heart and great vessels Flashcards
borders of the heart superior left right lower
superior: inf border of 2nd costal cartilage to sup border of 3rd right costal cartialge
left: 2nd to 5th intercostal spaces left of sternum
right: 3rd to 6th intercostal space right of sternum
lower: across xiphisternal junction
what do these surfaces include? sternocostal diaphragmatic base apex
sternocostal: right arium and right ventricle
diaph: both ventricles
base: left atrium
apex: tip of left ventricle
path way of deox blood
sup/inf vena cave -> right atrium -> right AV valve -> right ventricle -> pulm valve -> pulm trunk -> pulm arteries -> lungs
pathway of oxygenated blood
lungs -> pulm vein -> left atrium -> left AV valve -> left ventricle -> aortic valve -> aorta -> body
what does the right marginal artery supply?
inferior border of right ventricle
what does the posterior interventricular artery supply?
- post ventricles
- AV node
what does the LAD artery supply/
- left and part of right ventricle
- AV bundles: right and left
function of circumflex artery
anastomoses w/ right coronary artery
what does the left marginal artery supply?
lateral wall of left ventricle
what area does the great cardiac ein drain?
areas LAD supplies
left and right ventricles, left and right AV bundles
what area does the middle cardiac vein drain
areas suplpied by posterior interventricular (AV node)
what area does the small cardiac vein drain?
area supplied by right marginal artery
what nerve does parasympathetic control of heart beat come from?
vagus nerve
what dermatome does reffered pain from the heart appear?
T1-T5
what nerve controls CO, BP, and blood chemistry
afferent fibers from vagus nerve
