Understanding Circulation: Anatomy of the Heart

Jul 05, 2025

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Explore the structure of the heart - a muscular, four-chambered pump protected by the pericardium and composed of cardiac muscle cells connected by collagen and elastin fibers. Learn how this durable organ functions as the body's vital pump.

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Understanding Circulation: Anatomy of the Heart

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Lecture 8Circulation
The Structure • Is a muscular, four-chambered and durable pump. • Made of: • Pericardium; tough, double-layered connective tissue sac, protects & anchors the heart. • Myocardium; cardiac muscle cells tethered to collagen & elastin fibers. • Fibers-so densely crisscrossed-serve as skeleton.