239) Myocardial contractility

[Editor]

239).MYOCARDIAL CONTRACTILITY IS ENHANCED BY

a) factors which shift the starling curve to the left
b) catecholamines
c) an increase in calcium concentration
d) acidosis
e) an increase in vagal tone

[Editor]

mark wrote:

239).MYOCARDIAL CONTRACTILITY IS ENHANCED BY

a) factors which shift the starling curve to the left
b) catecholamines
c) an increase in calcium concentration
d) acidosis
e) an increase in vagal tone

t t t f f

Factors that shift the curve to the left increase contractility.
Catecholamines and increased serum Ca levels increase contractility while acidosis and parasympathetic stimulation decrease contractility