In this journal post, I wanted to focus on the cardiovascular system and provide myself another resource for understanding blood flow and how it moves through this system. I also wanted to define and give a more thorough explanation of certain terms.
Circulatory Pattern:
Heart ➢ Artery ➢ Arteriole ➢ Capillary ➢ Venule ➢Vein ➢ Heart
Endocardium- squamous endothelial cells, connective tissue, smooth muscle cells; This layer of the heart provide a smooth surface for blood contraction and pumping. It is the innermost lining of the heart (Boundless).
Myocardium- cardiac muscle cells; This is the muscle tissue of the heart. Cardiac muscle cells are found here and allow for contraction and conductivity of electricity, which need needed for contraction. The cells include intercalated discs which hold cells together for contraction (Boundless).
Epicardium- mesothelium, veins and nerves that supple to heart; This layer of tissue is a layer of connective tissue and serves as a layer of protection for the heart underneath of pericardium (Boundless).
Sources:
https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/the-cardiovascular-system-18/the-heart-172/layers-of-the-heart-walls-864-636/
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