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The base of the heart is where the great vessels are attached. Apex of the Heart. The inferior, pointed tip of the heart. Coronary Sulcus. A deep groove, marking the border between the atria and the ventricles. Anterior Interventricular Sulcus. Shallow depressions that mark the boundary between the left and right ventricles.
Coronary arteries supply blood and nutrients, such as fatty acids, to the heart tissue itself. What is the internal structure of the heart? Atria and ventricles separated by the atrioventricular or cuspid valves. Tricuspid valve on the right side, bicuspid or mitral calve on the left side. Valves are attached via heart tendons to papillary muscles.
1. The endocardium is the innermost layer. 2. the muscular middle layer is the myocardium. 3. The epicardium is the outermost layer of the heart wall, and also the innermost layer of the protective pericardium that surround the heart. The endocardium is composed of simple squamous epithelial cells which form the inner lining of the heart chambers.
May 23, 2024 · The heart is the most important organ in the human body as if it is unable to pump air someone’s life will either be cut short or become extremely difficult to maintain. The quiz below is on the heart and circulatory system and is set to see how well you can identify the parts of the heart. Questions and Answers. 1.
6 - the heart : name the parts of the human heart. 7 - the muscles : Can you identify the muscles of the body? 8 - anatomical planes and directions : Do you know the language of anatomy? 9 - the spine : Test your knowledge of the bones of the spine. 10 - the skin : understand the functions of the integumentary system.
Mar 21, 2023 · The heart is composed of cardiac muscle tissue, which is striated in nature. Additionally, the branching pattern of cardiac muscle fibers allows for coordinated contraction and efficient pumping of blood throughout the body. Rate this question: 7. The human's heart contains intercalated discs that have gap junctions.
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Aug 19, 2023 · The oxygenated blood then returns to the heart, specifically the left atrium. Finally, the blood flows into the left ventricle, which pumps it out to the rest of the body. Rate this question: 4 0. 5. A structure in the heart that temporarily closes, ensuring that blood moves in only one direction. A.
