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Nov 3, 2023 · The inner layer lines the heart chambers and is made of endothelial cells. Superiorly, is the second layer: a subendocardial connective tissue which is continuous with the connective tissue of the myocardium. Branches of the heart’s conduction system are immersed into the subendocardial layer.
- Heart Valves Anatomy
Understanding heart valves anatomy is important in grasping...
- Pericardium
Between the layers is the pericardial cavity, a potential...
- Oral Cavity
Oral cavity. The oral cavity is situated anteriorly on the...
- Conduction System
Proximally, the superior part of the left branch passes in...
- Structure, Valves, Coronary Vessels
The cusps are pushed open to allow blood flow in one...
- Cardiac Muscle Tissue Histology
Cardiac muscle tissue, also known as myocardium, is a...
- Ventricles
The definition of heart ventricles can be summed up as the...
- Atria
Basic anatomy of the heart. The heart is at the center of...
- Heart Valves Anatomy
Study with Quizlet and memorize flashcards containing terms like Label the layers that cover and surround the heart., Label the figure depicting the layers of the heart wall and coverings of the heart., What is the deepest layer in the wall of the heart? and more.
- Regina Bailey
- Epicardium. Epicardium (epi-cardium) is the outer layer of the heart wall. It is also known as visceral pericardium as it forms the inner layer of the pericardium.
- Myocardium. Myocardium (myo-cardium) is the middle layer of the heart wall. It is composed of cardiac muscle fibers, which enable heart contractions. The myocardium is the thickest layer of the heart wall, with its thickness varying in different parts of the heart.
- Endocardium. Endocardium (endo-cardium) is the thin inner layer of the heart wall. This layer lines the inner heart chambers, covers heart valves, and is continuous with the endothelium of large blood vessels.
Aug 4, 2023 · 1. Epicardium (Outermost Layer of Heart) The epicardium is the outermost layer of the heart wall made up of mesothelium, fats, and connective tissues. It forms the inner serous layer of the pericardium; hence, it is also known as the visceral serous pericardium.
- Location of the Heart. The human heart is located within the thoracic cavity, medially between the lungs in the space known as the mediastinum. Figure 19.2 shows the position of the heart within the thoracic cavity.
- Shape and Size of the Heart. The shape of the heart is similar to a pinecone, rather broad at the superior surface and tapering to the apex (see Figure 19.2).
- Chambers and Circulation through the Heart. The human heart consists of four chambers: The left side and the right side each have one atrium and one ventricle.
- Membranes, Surface Features, and Layers. Our exploration of more in-depth heart structures begins by examining the membrane that surrounds the heart, the prominent surface features of the heart, and the layers that form the wall of the heart.
Jan 4, 2024 · The innermost layer of the cardiac wall is known as the endocardium. It lines the cavities and valves of the heart. Structurally, the endocardium is comprised of loose connective tissue and simple squamous epithelial tissue – it is similar in its composition to the endothelium which lines the inside of blood vessels.
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Your heart walls are the muscles that contract (squeeze) and relax to send blood throughout your body. A layer of muscular tissue called the septum divides your heart walls into the left and right sides. Your heart walls have three layers: Endocardium: Inner layer. Myocardium: Muscular middle layer. Epicardium: Protective outer layer.
