Cardiac muscle is network of branched fibers (cells) connected by gap junctions called intercalated disks.
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Desmosomes and gap junctions But, more specifically...the junctions found in Cardiac muscles are called "Intercalated Discs" singular: INTERCALATED DISC plural: INTERCALATED DISCS
Desmosomes and gap junctions But, more specifically...the junctions found in Cardiac muscles are called "Intercalated Discs" singular: INTERCALATED DISC plural: INTERCALATED DISCS
The intercalated disc is the band that forms by the joining of two cardiac muscles. These muscles work together to form a syncytium.
Desmosomes
Basically, the cardiac action potential travel across them, making it easier for the electrical impulses to move quickely.
The gap junction is the component of the intercalated disc that provides intercellular communication essential for myocardial cells to function as a syncytium. Gap junctions allow for the passage of ions and small molecules between adjacent cardiac muscle cells, synchronizing their electrical and mechanical activities.
Cardiac muscle fibres contain GAP JUNCTION in the intercalated disc which makes them to function as a FUNCTIONAL SYNCYTIUM
An intercalated disc forms connections between neighboring cells in the heart. Two types of connections are formed at each intercalated disc, which connects the cell membranes of two myocytes (heart muclse cells). One is a physical connect and the other is a chemical link. These allow the heart to beat as if it is almost one cell. Other factors slow the coordination so that the heart muscle will contract top to bottom.
Intercalated discs are found in cardiac muscle tissue, specifically at the junction between adjacent cardiomyocytes (heart muscle cells). They contain specialized structures that facilitate communication and coordination between cells, allowing for synchronized contraction of the heart.