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Sheets of cells
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- When we look a bit closer at cardiac muscle, we can see that it is arranged in sheets of cells, which are connected to each other in a lattice-work fashion. Where two cells meet a specialized junction called an intercalated disc locks the two cells into place.
biologydictionary.net/cardiac-muscle/Cardiac Muscle - Definition, Function and Structure | Biology ...
Oct 4, 2019 · Cardiac muscle is controlled by the autonomous nervous system. Cells in your brain and cells embedded throughout your heart act to release well-timed nervous impulses which signal your heart cells to contract in the correct pattern.
Oct 19, 2024 · Cardiac muscle differs from skeletal muscle in that it exhibits rhythmic contractions and is not under voluntary control. The rhythmic contraction of cardiac muscle is regulated by the sinoatrial node of the heart, which serves as the heart’s pacemaker.
- The Editors of Encyclopaedia Britannica
Jun 21, 2019 · Cardiac muscle tissue is a specialized, organized type of tissue that only exists in the heart. It is responsible for keeping the heart pumping and blood circulating around the...
Identify and describe the components of the conducting system that distributes electrical impulses through the heart. Compare the effect of ion movement on membrane potential of cardiac conductive and contractile cells. Relate characteristics of an electrocardiogram to events in the cardiac cycle.
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
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.
Aug 8, 2023 · Cardiac muscle (or myocardium) makes up the thick middle layer of the heart. It is one of three types of muscle in the body, along with skeletal and smooth muscle. The myocardium is surrounded by a thin outer layer called the epicardium (AKA visceral pericardium) and an inner endocardium.
Jul 30, 2023 · Introduction. Cardiac muscle also called the myocardium, is one of three major categories of muscles found within the human body, along with smooth muscle and skeletal muscle. Cardiac muscle, like skeletal muscle, is made up of sarcomeres that allow for contractility. However, unlike skeletal muscle, cardiac muscle is under involuntary control.
