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Which four tissue types are found in the heart?
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human body
Vintage anatomy charts of the human body showing the skeletal and muscle systems.
The human heart is a complex organ composed of the four primary types of animal tissues:
- Muscle tissue: The heart is primarily composed of specialized cardiac muscle, which provides the contractile force necessary for pumping blood throughout the body.12
- Epithelial tissue: This tissue forms the lining of the heart's chambers and valves (the endocardium) and the outer surface of the heart (part of the epicardium).1
- Connective tissue: This tissue provides structural support and cohesion. It is found within the heart wall, supporting the epicardium, and forms the framework that holds the organ's structures together.13
- Nervous tissue: The heart contains nervous tissue that regulates its function. This includes the fibers of the autonomic nervous system—specifically the sympathetic and parasympathetic nerves—which control the heart's rate and contractility.4