myocardium
Heart's muscular wall
The myocardium is the muscular tissue of the heart—the thick middle layer of the heart wall responsible for contracting and pumping blood.
Most heart attacks result from blocked blood flow to the myocardium: The patient suffered damage to the myocardium.
The adjective is myocardial, as in myocardial infarction.
Circulatory system's pump
Reduction in size
- systoleHeart muscle contraction phase
- diastoleCardiac relaxation phase
- heartbeatRhythmic cardiac contraction
- ejectionForced removal from somewhere
depolarization · repolarization · excitation · actin · myosin · action potential · preload · afterload
Tissue necrosis from ischemia
- ischemiaInsufficient tissue blood supply
- arrhythmiaAbnormal cardiac rhythm
- fibrosisPathological connective tissue buildup
- necrosisLocalized cell death
hypertrophy · heart failure · angina · stunning · hibernation · remodeling · scarring · rupture
Restoring tissue perfusion surgically
- bypass surgeryRerouting blood past blockages
- angioplastyProcedure to widen vessels
- stentImplanted tube for blockages
- transplantMove tissue between bodies
pacemaker · defibrillator · ablation · rehabilitation · medication · beta-blocker · ACE inhibitor · resynchronization
Ultrasound of the heart
- electrocardiogramHeart's electrical activity record
- angiographyImaging of blood vessels
- MRIMagnetic body imaging
- biopsyTissue sample for diagnosis
stress test · catheterization · ultrasound · imaging · BNP · PET scan
heart
Circulatory system's pump
contraction
Reduction in size
- systoleHeart muscle contraction phase
- diastoleCardiac relaxation phase
- heartbeatRhythmic cardiac contraction
ejection · depolarization · repolarization · excitation · actin · myosin · action potential · preload · afterload · automaticity
infarction
Tissue necrosis from ischemia
- ischemiaInsufficient tissue blood supply
- arrhythmiaAbnormal cardiac rhythm
- fibrosisPathological connective tissue buildup
necrosis · hypertrophy · heart failure · angina · stunning · hibernation · remodeling · scarring · rupture · aneurysm
revascularization
Restoring tissue perfusion surgically
- bypass surgeryRerouting blood past blockages
- angioplastyProcedure to widen vessels
- stentImplanted tube for blockages
transplant · pacemaker · defibrillator · ablation · rehabilitation · medication · beta-blocker · ACE inhibitor · resynchronization · stem cell therapy
echocardiogram
Ultrasound of the heart
- electrocardiogramHeart's electrical activity record
- angiographyImaging of blood vessels
- MRIMagnetic body imaging
biopsy · stress test · catheterization · ultrasound · imaging · BNP · PET scan
- body partsarm, leg, hand, back, chest
- anatomybrain, heart, bones, liver, stomach
- Circulatory Systemheart rate, blood, artery, veins, capillary
- muscle systemmuscle, biceps, triceps, deltoid, deltoids
- cardiologyheart attack, heart failure, heart rate, heartbeat, heart valves
- body tissuestissue, connective tissue, muscle, bone, cartilage
- myocardial infarctionCardiac tissue death event