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  1. quizlet.com › 4693481 › the-heart-flash-cardsThe Heart Flashcards - Quizlet

    Study with Quizlet and memorize flashcards containing terms like Trace the pathway of blood through the heart, Compare the pulmonary and systemic circuits, Explain the operation of the heart vavles and more.

  2. quizlet.com › 85530862 › anatomy-of-the-heart-flashAnatomy of the Heart Flashcards - Quizlet

    Study with Quizlet and memorize flashcards containing terms like Base of the Heart, Apex of the Heart, Coronary Sulcus and more.

  3. quizlet.com › 14201094 › parts-of-the-heart-flash-cardsPARTS OF THE HEART Flashcards - Quizlet

    Terms in this set (15) Superior Vena Cava. #1 Carries deoxygenated blood from the body. Aorta. #2 Artery that carries blood directly from the heart to the rest of the body. Pulmonary Trunk. #3 Carries blood from right ventricle to pulmonary arteries. Right Atrium. #4 pumps blood from vena cava into right ventricle.

  4. med.libretexts.org › Bookshelves › Anatomy_and17.2: Heart Anatomy - Medicine LibreTexts

    Oct 20, 2024 · The base of the heart is located at the level of the third costal cartilage, as seen in Figure 17.2.1 17.2. 1. The inferior tip of the heart, the apex, lies just to the left of the sternum between the junction of the fourth and fifth ribs near their articulation with the costal cartilages.

  5. www.thoughtco.com › heart-anatomy-373485The Anatomy of the Heart, Its Structures, and Functions

    • Heart Anatomy
    • Heart Wall
    • Cardiac Conduction
    • Cardiac Cycle
    • Valves

    The structure of the heart has four chambers: 1. Atria: Upper two chambers of the heart. 2. Ventricles: Lower two chambers of the heart.

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    The structure of the heart wallconsists of three layers: 1. Epicardium: The outer layer of the wall of the heart. 2. Myocardium: The muscular middle layer of the wall of the heart. 3. Endocardium: The inner layer of the heart.

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    Cardiac conduction is the rate at which the heart conducts electrical impulses. Heart nodes and nerve fibers play an important role in causing the heart to contract. 1. Atrioventricular Bundle: A bundle of fibers that carry cardiac impulses. 2. Atrioventricular Node: A section of nodal tissue that delays and relays cardiac impulses. 3. Purkinje Fib...

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    The Cardiac cycleis the sequence of events that occurs when the heart beats. Below are the two phases of the cardiac cycle: 1. Diastole phase: The heart ventricles are relaxed and the heart fills with blood. 2. Systole phase: The ventricles contract and pump blood to the arteries.

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    Valves are flap-like structures of the heart that allow blood to flow in one direction. Below are the four valves of the heart: 1. Aortic valve: Prevents the backflow of blood as it is pumped from the left ventricle to the aorta. 2. Mitral valve: Prevents the backflow of blood as it is pumped from the left atrium to the left ventricle. 3. Pulmonary...

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  6. en.wikipedia.org › wiki › Anatomy_of_the_human_heartAnatomy of the human heart - Wikipedia

    The heart has the shape of a pyramid, with its apex pointing towards the left nipple while its base forms the posterior surface of the heart. Other surfaces are the anterior, inferior (or diaphragmatic), and two pulmonary surfaces facing the lungs.

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  8. bio.libretexts.org › Courses › West_Hills_College17.2: Location, Size, and Shape of the Heart - Biology LibreTexts

    The shape of the heart is similar to a pinecone, broad at the superior surface (called the base) and tapering to the apex. A typical heart is approximately the size of your fist: 12 cm (5 in) in length, 8 cm (3.5 in) wide, and 6 cm (2.5 in) in thickness.