cardiac physiology Flashcards
(51 cards)
vessels that are considered as primary resistance vesseles ?
arterioles
3rd heart sound produced which phase of the cardiac cycle?
rapid ventricular filling
in right dominant person posterior descending artery originated from?
right coronary artery
notched p wave in ecg indicates ?
left atrial enlargement
the ventricles completely depolarized which portion of the ecg?
ST segment
myocardial contractility best correlated with which ion?
ca+
carbon di oxide regulates blood flow to which organ?
Brain
cardiac output of the right side of the heart is what percentage of the cardiac output of left side of the heart?
50%? 75?% or more?
100%
blood flow to which organ primarily controlled by sympathetic nervous system, not by metabolites?
Skin
cause of wide splitting S2
RBBB,pulmonary stenosis
can you say few causes of increased pressure in the right atrium?
tricuspid stenosis, Right ventricular failure, Cardiac tamponade
cause of slow rising pulse?
AS
cause of jerky pulse ?
HOCM
cause of pulsus alternans?
severe LVF,AR
cause of palpable S1?
mitral stenosis
cause of papable p2?
pulmonary HTN
cause of displaced or thrusting apex beat?
MR/AR
cause of discrete or heaving apex beat?
AS,HTN
cause of bounding pulse?
hyperdynamic circulation(anaemia,oregnancy,thyrotoxicosis)
cause of wide pulse pressure?
thyrotoxicosis, destructive sleep apnoea,arteriosclerosis,ASD,PDA
cause of narrow pulse pressure?
dengue,AS,cardiac tamponade,shock
during sleep cardiac output decreases?T/F
F ..no change
which organ has highest blood flow?
LIver,if you consider per 100gm then kidney
most permeable portion of the microcirculation?
Post capillary venules
