Definitions for cardiac muscle
car·diac mus·cle

Princeton's WordNetRate this definition:0.0 / 0 votes

1. cardiac muscle, heart musclenoun

   the muscle tissue of the heart; adapted to continued rhythmic contraction

WiktionaryRate this definition:0.0 / 0 votes

1. cardiac musclenoun

   The striated and involuntary muscle of the vertebrate heart.

WikipediaRate this definition:0.0 / 0 votes

1. Cardiac muscle

   Cardiac muscle (also called heart muscle, myocardium, cardiomyocytes and cardiac myocytes) is one of three types of vertebrate muscle tissues, with the other two being skeletal muscle and smooth muscle. It is an involuntary, striated muscle that constitutes the main tissue of the wall of the heart. The cardiac muscle (myocardium) forms a thick middle layer between the outer layer of the heart wall (the pericardium) and the inner layer (the endocardium), with blood supplied via the coronary circulation. It is composed of individual cardiac muscle cells joined by intercalated discs, and encased by collagen fibers and other substances that form the extracellular matrix. Cardiac muscle contracts in a similar manner to skeletal muscle, although with some important differences. Electrical stimulation in the form of a cardiac action potential triggers the release of calcium from the cell's internal calcium store, the sarcoplasmic reticulum. The rise in calcium causes the cell's myofilaments to slide past each other in a process called excitation-contraction coupling. Diseases of the heart muscle known as cardiomyopathies are of major importance. These include ischemic conditions caused by a restricted blood supply to the muscle such as angina, and myocardial infarction.

WikidataRate this definition:0.0 / 0 votes

1. Cardiac muscle

   Cardiac muscle is a type of involuntary striated muscle found in the walls and histological foundation of the heart, specifically the myocardium. Cardiac muscle is one of three major types of muscle, the others being skeletal and smooth muscle. These three types of muscle all form in a process known as myogenesis. The cells that comprise cardiac muscle, called cardiomyocytes or myocardiocytes, only contain one, unique nucleus. Coordinated contractions of cardiac muscle cells in the heart propel blood out of the atria and ventricles to the blood vessels of the left/body/systemic and right/lungs/pulmonary circulatory systems. This complex of actions makes up the systole of the heart. Cardiac muscle cells, like all tissues in the body, rely on an ample blood supply to deliver oxygen and nutrients and to remove waste products such as carbon dioxide. The coronary arteries fulfill this function.

Matched Categories

1. • Muscle

How to pronounce cardiac muscle?

1. Alex

   US English

   David

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   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

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   Zira

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   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say cardiac muscle in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of cardiac muscle in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of cardiac muscle in Pythagorean Numerology is: 4

Examples of cardiac muscle in a Sentence

1. John Crowley:

   What the enzyme is designed to do is to replace the enzyme that's missing or defective in people with Pompe, it's designed to get to muscle cells, including the heart, which is a cardiac muscle, to get to the diaphragm, which is involved of course in breathing, and restore muscle function as best as it can.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=cardiac muscle
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cardiac_Muscle
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cardiac_Muscle
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cardiac muscle