Heart Flashcards
pericardium
unyielding dense CT, mesothelium, produce serous fluid to decrease friction, innervated by PHRENIC
cardiac tamponade
acute pericardial effusion, Becks triad
becks triad
JVD, muffled heart sounds, decreased arterial pressure
surfaces of heart
auricles, inter ventricular sulcus, pericardial reflection, ligament arteriousum, coronary sulcus
what is coronary sulcus
where most of the veins empty, then empties into RA
coronary sulci
grooves/fissures for vessels to avoid pressure/friction
thesbian veins
in myocardium, empty direct into chambers
RCA brances
posterior descending, R marginal
LCA branches
l circumflex, anterior inter ventricular (decending)
CAD
cholesterol deposits damage coronary arteries, thick tunica intima
body compensation fro CAD
collateral growth, reverse flow (thespian), endow bypass via vasa vsorum or CABG
RA
gets venous blood, pectinate muscle, lumbus/fossa ovalis
fossa ovalis
patent in 20-25%, tricuspid valve
RV
conus arteries, pap muscle, chord tend, trabecular carnea, semilunar pulm valve, moderator band
coronary artery perfuson
during diastole, relaxed myocardium,
mitral valve is in
left atrium
heart sympathetic
T1-T4
heart parap
vagus (long pregang)
blunt trauma to sternum will injure which chamber?
right ventricle
where is oblique pericardial sinus
inside pericardial sac, between pulmonary veins. between left atrium and esophagus.
where is transverse pericardial sinus
behind ascending aorta and pulm trunk
what does transverse pericardial sinus allow
expansion of great vessels during systole
what does oblique sinus allow for
expansion of left atrium during inhalation
what heart issues can compress esphagus
left atrial enlargement, mitral valve issues
what is in moderator band
right branch of atrioventricular bundle
right coronary artery supplies what
right ventricle, right atrium, posterior 1/3 of IV septum
what artery branch supple SA/AV nodes
atrial and SA nodal branches, off of right coronary… issues can lead to heart block
what artery supplies the inter ventricular septum
anterior inter ventricular- branch of Left coronary
perkinje fiber achilles
conduction is in endocardium, blood is in epicardium..perkinje perfused last so die first and mess up conduction
left anterior decending runs with what vein
great cardiac
right posterior decending runs with
middle cardiac vein
right marginal artery runs with what vein
small cardiac
what vein runs with right circumflec
small cardiac
what valves make S1 sound
tricuspid and mitral
atropine effect
increase heart rate (block parasympathetic)
water bottle sign
pericardial effusion/pericardidits
when are coronary arteries perfused
diastole
