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HEART MUSCLE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The muscle tissue of the heart; adapted to continued rhythmic contraction
Synonyms:
Classified under:
Hypernyms ("heart muscle" is a kind of...):
muscle; muscular tissue (animal tissue consisting predominantly of contractile cells)
Hyponyms (each of the following is a kind of "heart muscle"):
cardiac pacemaker; pacemaker; SA node; sinoatrial node (a specialized bit of heart tissue that controls the heartbeat)
papillary muscle (any of several muscles associated with the atrioventricular valves)
atrioventricular bundle; atrioventricular trunk; bundle of His; truncus atrioventricularis (a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract)
atrioventricular node (a node of specialized heart muscle located in the septal wall of the right atrium; receives impulses from the sinoatrial node and transmits them to atrioventricular bundle)
myocardium (the middle muscular layer of the heart wall)
Purkinje fiber (a specialized cardiac muscle fiber that is part of the Purkinje network)
Purkinje's system; Purkinje's tissue; Purkinje network (a network of Purkinje fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the heart and causes them to contract)
Holonyms ("heart muscle" is a part of...):
heart; pump; ticker (the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body)
Context examples:
The specimens presented better capacity to contract their heart muscle.
(Molecule created in Brazil helps fight heart failure, Agência Brasil)
They also improved the heart muscle cell’s ability to contract and relax.
(New stem cell combination could help to repair damaged hearts, University of Cambridge)
Dilated cardiomyopathy (DCM) is a heart muscle disease characterised by dilation and impaired contraction of the left or both ventricles that results in progressive heart failure and sudden cardiac death from ventricular arrhythmia.
(Dilated Cardiomyopathy Pathway, NCI Thesaurus/KEGG)
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited heart muscle disease that may result in arrhythmia, heart failure, and sudden death.
(Arrhythmogenic Right Ventricular Cardiomyopathy Pathway, NCI Thesaurus/KEGG)
Doctors may use angioplasty to: • Reduce chest pain caused by reduced blood flow to the heart • Minimize damage to heart muscle from a heart attack
(Angioplasty, NIH: National Heart, Lung, and Blood Institute)
Issue associated with the loss of the minimum amount of energy, voltage, or current needed to consistently stimulate the heart muscle.
(Loss of Threshold Medical Device Problem, Food and Drug Administration)
Using high-resolution 3D images and special light-activated probes, the scientists revealed a two-part system protecting the heart muscle’s power grid from disease-related damage.
(Researchers discover mitochondrial “circuit breaker” that protects heart from damage, NIH)
A procedure that captures pictures of blood flow throughout the heart muscle.
(Myocardial Perfusion Imaging, NCI Thesaurus)
Myocardial infraction (MI) is the condition of irreversible necrosis of the heart muscle that results from prolonged ischemia.
(Acute Myocardial Infarction Pathway, NCI Thesaurus/BIOCARTA)
Digoxin helps the heart work normally by controlling the amount of calcium that goes into the heart muscle.
(Digoxin, NCI Dictionary)
