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RESPONSE TO STIMULI
CONTROL OF HEART RATE
CARDIAC MUSCLE
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Created by
Jasmine Singh
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Cards (6)
WHAT IS A CHARACTERISTIC OF CARDIAC MUSCLE?
myogenic
WHAT DOES IT MEAN TO BE MYOGENIC?
contraction is initiated from within the muscle itself rather than
nervous impulses outside
WHERE DOES THE ORIGINAL STIMULUS FOR THE CONTRACTION ORIGINATE?
group
of
cells
called the
SAN
inside
the
right atrium wall
WHAT IS THE SAN?
sinoatrial node
WHAT DOES THE SAN DO?
has
basic rhythm
of
stimulation
that determines the
beat
of the
heart
WHAT IS THE SAN ALSO KNOWN AS?
pacemaker
