Essential Glossary Flashcards
What is the inflammation of the heart called?
Carditis
What is cardiac automaticity?
The ability of the heart to generate an action potential
What is the pace maker action potential?
The gradual depolarization of the SA node
What forms the posterior surface?
Left and right atria
Where is the heart contained?
In the pericardium
What does the bicuspid/mitral valve do?
Open into the left atrium
What is a heart beat irregularity called?
Arrhythmia
What is the layer of tissue that lines the chambers of the heart called?
Endocardium
What is myocardial excitability called?
the ability of the cardiac muscle to be excited by adequate stimulus
What is myocardial conductivity?
The ability of the heart muscle to transmit the cardiac impulse that originates in the SA node
What is the sarcomere?
The area from the Z line of I band to the next Z line
What is tropomyosin?
The protein filament in the space between two strands of actin filaments
What is troponin?
Has types tn I and tn C and tn T
What is acute rheumatic fever?
It’s an inflammatory foci called Aschoff bodies
What is myosin?
Thick filaments with globular heads
