06-20-2009, 03:50 AM
following NE administration ,to an isolated solution of papillary muscle leads to inc work done by the muscle at a given load without changing the length of the muscle. the inc in work done by the muscle is the result of which of the following??
A) overlap of thick & thin filaments at initial length
B) sarcoplasmic Ca2+ concentration while the load is filled
C) sarcoplasmic phosphocreatine concentration
D) stiffness of series elastic elements
A) overlap of thick & thin filaments at initial length
B) sarcoplasmic Ca2+ concentration while the load is filled
C) sarcoplasmic phosphocreatine concentration
D) stiffness of series elastic elements