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NSG 532 CARDIOVASCULAR PHYSIOLOGY EXAM LATEST UPDATED
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NSG 532 CARDIOVASCULAR PHYSIOLOGY EXAM LATEST UPDATED...
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NSG 532 CARDIOVASCULAR PHYSIOLOGY EXAMLATEST UPDATED
Systemic cellular metabolism
C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O
Coronary sinus
receives blood from cardiac veins to go to right atrium to be oxygenated
Endothelium
closest to the lumen; tunica intima
Myocardium
heart muscle containing cardiomyocytes
Myocardium description
striated, auto rhythmic, and branching myofibers that are joined by
intercalated disks
pericardium
4 layers of connective tissue
sarcolemma
muscle cell membrane
sarcoplasm
cytoplasm of a muscle cell
T-tubule
, projection of the sarcolemma into the interior of the cell
@ T-tubule
site of AP conduction in muscle cell
sarcoplasmic reticulum
store Ca2+, release & regulation of intracellular Ca2+
sarcomere
contractile unit of a muscle fiber
actin
thin filaments
myosin
thick filament
muscle cell mitochondria
provide the majority of ATP needed for contraction and ion homeostasis
intercalated disk
A specialized junction between cardiac muscle cells that provides direct
electrical coupling between the cells.
Desmosomes
maintain resistance to mechanical stress during cardiac cycle.
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