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Class: BIOL 2150 - PRINCIPLES OF PHYSIOLOGY; Subject: Biology; University: The Richard Stockton College of New Jersey; Term: Fall 2012;
Typology: Quizzes
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TERM 1
DEFINITION 1 extracellular calcium (Ca++) is needed-SR is too small and cant store enough Ca++-not enough calcium leads tohypocalcemia TERM 2
DEFINITION 2 calcium binds to calmodulin and activates MLCK (myosinlight chain kinase)-no troponin TERM 3
DEFINITION 3 Myosin Light Chain Kinase (MLCK) enhances myosin ATPase activity byphosphorylating light protein chains near the myosin head. TERM 4
DEFINITION 4 Calcium and calmodulin and MLCK activate myosin heads- attaches Pi TERM 5
DEFINITION 5 cross bridges form with actin( light protein chains on myosin head are phosphorylated to allow this binding)
TERM 6
DEFINITION 6 high myosin ATPase activity occurs = causes the binding with actin TERM 7
DEFINITION 7 dephosphorylation of myosin light chainphosphatase(MLCP)- stops ATPase TERM 8
DEFINITION 8 Ca++ and Na+ exchange to get calcium out of cytoplasm TERM 9
DEFINITION 9 calmodulin uncomplexes TERM 10
DEFINITION 10 MLCK inactivated(myosin light chain kinase)