Weblie in central region of each. contractile unit. linked together by thin disc. (M line) runs perpendicular to orientation of myosin filaments. slot between outer. edges of myosin. … WebMar 24, 2024 · The heart is made of three layers of tissue. Endocardium is the thin inner lining of the heart chambers and also forms the surface of the valves. Myocardium is the …
4.4 Muscle Tissue – Anatomy & Physiology
WebJun 21, 2024 · There are three types of muscle tissue in the body: skeletal, smooth, and cardiac. Cardiac muscle is highly organized and contains many types of cell, including … WebApr 12, 2024 · The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, … canon wifi picture transfer
Coronary Arteries: Anatomy and Function - Cleveland Clinic
WebCardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissues, with the other two being skeletal muscle and smooth muscle.It is an involuntary, striated muscle that … Use this interactive 3-D diagram to explore the movement of cardiac muscle tissue. What are heart muscles made of? Intercalated discs Intercalated discs are small connections that join... See more Intercalated discs are small connections that join cardiac muscle cells (cardiomyocytes) to each other. See more Gap junctions are part of the intercalated discs. When one cardiac muscle cell is stimulated to contract, a gap junction transfers the … See more The nucleus is the “control center” of a cell. It contains all of the cell’s genetic material. While skeletal muscle cells can have multiple nuclei, cardiac muscle cells typically only have one nucleus. See more Like gap junctions, desmosomes are also found within intercalated discs. They help hold the cardiac muscle fibers together during a contraction. See more WebThe left main coronary divides into branches: The left anterior descending artery branches off the left coronary artery and supplies blood to the front of the left side of the heart. The … flahing an old window