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Why is it important for cardiac muscle cells to be branched and interconnected with other cardiac muscle cells?
so electrical impulses can be carried freely between cells
Does cardiac electrical activity immediately precede the contraction of the cardiac muscle?
Yes
What do intercalated discs transfer from cell to cell?
Intercalated discs transfer electrical impulses and allow for coordinated contraction of cardiac muscle cells. They also facilitate the passage of ions and molecules between adjacent cells, helping to synchronize their activity.
What is the tissue and structure that forms an electrical block between the atria and ventricles?
The tissue that forms an electrical block between the atria and ventricles is the atrioventricular (AV) node and the surrounding fibrous tissue known as the cardiac skeleton. The AV node receives electrical signals from the atria and delays them before transmitting to the ventricles, allowing for coordinated heart contractions. The cardiac skeleton provides structural support and insulation, preventing direct electrical conduction between the atria and ventricles, ensuring that the heart beats in a controlled manner.
Are all cardiac cells are able to initiate electrical?
false
What are similarities between skeletal muscle and cardiac muscle?
cardiac is cardiac and skeletal is skeletal.
What is the use for a cardiac defibrillator?
You can use a cardiac defibrillator to delivery electrical energy to a patients heart by the use of electrodes. This is commonly used on patients with cardiac dysrhythmias or ventricular fibrillation.
What are the electrical connectors between heart muscles and cells called?
The electrical connectors between heart muscles and cells are called intercalated discs. These specialized structures allow for the rapid conduction of electrical signals between cardiac muscle cells, ensuring coordinated contraction of the heart muscle.
Which part if the heart malfunctions when a person suffers a cardiac arrest?
electrical system
What is responsible for conducting electrical impulses within the cardiac muscle?
Intercalculated Discs
An electrocardiogram is a recording of electrical changes occurring in the myocardium during what?
Cardiac cycle
What pattern will show on ecg after sudden cardiac arrest?
Abnormal electrical patterns
