Cardiac Pacemaker Cells Research Paper

Improved Essays
There are two types of cells within the heart: the cardiomyocytes and the cardiac pacemaker cells. Cardiomyocytes make up the atria, the chambers in which blood enters the heart, and the ventricles, the chambers where blood is collected and pumped out of the heart. These cells must be able to shorten and lengthen their fibers and the fibers must be flexible enough to stretch. These functions are critical to the proper form during the beating of the heart.
Cardiac pacemaker cells carry the impulses that are responsible for the beating of the heart. They are distributed throughout the heart and are responsible for several functions. First, they are responsible for being able to spontaneously generate and send out electrical impulses. They also

Related Documents

  • Improved Essays

    How does the device and procedures support the role of the body systems? The artificial heart supports the role of a heart because an artificial heart supports the heart by helping it pump necessary blood and oxygen around the body in order for the body to properly function. Why is the device needed? The artificial heart is needed if you have severe heart failure and your heart cannot pump enough blood around the body in order for the body to function properly.…

    • 576 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    ROMK2 Stereotyping Mice

    • 1505 Words
    • 7 Pages

    (2007) , but any modifications to the procedure have clearly been specified. The entire process was handled at cold temperatures, with all necessary tubes and reagents being stored on ice. For every sample, two mice hearts were sacrificed and transferred to a flat-bottomed 2 mL centrifuge tube. The hearts were minced with surgical scissors after 500 µL isolation buffer (50 mL sucrose, 200 mM mannitol, 5 mM KH2PO4, 1 mM EGTA, 5 mM MOPS, 0.1% bovine serum albumin, pH to 7.3) was added to the tube (Sigma-Aldrich, St. Louis, MO, USA).…

    • 1505 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    Explain the significance of the thickness of the left ventricular wall. The right ventricle wall is small and thin containing deoxygenated blood. The left is just the opposite. The left ventricle is larger and thicker making it stronger than the right, but containing oxygenated blood.…

    • 520 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Then, the right atrium then the right ventricle and leaves through the pulmonary arteries to the lungs. Oxygenated blood enters into the pulmonary veins from the lungs and enters the left atrium and the left ventricle then it leaves through the aorta then travels to the rest of the body. In the heart beat there is sinoatrial nodes, atrioventricular nodes, bundles of his, and perkinje fibers. Sinoatrial nodes are a small muscle in the heart that produces some kind of signal. Atrioventricular nodes act as a relay station that controls the heart rate.…

    • 576 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Elodea Experiment

    • 362 Words
    • 2 Pages

    The cardiac muscle cell consisted of striations and many nuclei. Elodea looked like a green brick wall and consisted of cell walls and many organelles. The Elodea was estimated to to be 160μm, this estimate was 110μm off. The actual size of Elodea is 50μm. The drawing magnification was 250 times and the…

    • 362 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    Congestive Heart Failure The heart is fundamentally a blood pump. It pumps blood from the right side of the heart to the lungs to pick up oxygen. The oxygenated blood returns to the left side of the heart. The left side of the heart then pumps blood into the circulatory system of blood vessels that carry blood throughout the body.…

    • 267 Words
    • 2 Pages
    Decent Essays
  • Decent Essays

    San Rafael, Calif: Morgan and Claypool. The authors of this book had a primary purpose of creating a reference book or a textbook for graduate and senior undergraduate students in biomedical engineering or biotechnology programs. It provides cardiac tissue engineering strategies, research directions, and applications. It also provides a detailed diagram of the heart and cardiac muscle structure. Medical professionals in cardiology can use this source to acquire cardiac tissue engineering approaches and alternatives.…

    • 654 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Electrical Impulses

    • 402 Words
    • 2 Pages

    3. Explain the heart generates and conducts an electrical current. Page 388 The heart has its own built-in conduction system for generating action potentials spontaneously and coordinating contractions during the cardiac cycle. All the cardiac muscle fibers in each region of the heart are electrically linked together.…

    • 402 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    Introduction: The heart plays a crucial role in the human circulatory system. The large organ pumps the blood through arteries, veins, and capillaries to distribute oxygen and nutrients to the body. The circulatory system also plays a part in removing our waste products. Humans have double circulation, meaning the blood passes through the heart twice before completing one round; this allows for the blood to be “re-pressurized”. Once the right side of the heart receives blood from the body, it pumps it to the lungs.…

    • 1467 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Physiologic Pacing

    • 554 Words
    • 3 Pages

    I feel like this article follows up very well with chapter 18 and lab 30. As, I am familiar with the structures and terminology which helps me follow and understand what was going on. Also, pacemakers are a device that really intrigues me. It is amazing how we have made man-made objects to artificially make an organ work, especially something as important as the heart. This article could also benefit me one day, my Dad got a pacemaker at the age of 40.…

    • 554 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Physiological Effects of Monomorphic Ventricular Tachycardia Ventricular tachycardia (VT) is a disease of the heart, in which the heart’s normal rhythmic contraction is altered, changing the heart function (Ideker &Walcott, 1993). It is characterized by having a heartbeat that is too fast, although the disease itself is far more complex (Ideker & Walcott, 1993). Ventricular tachycardia often leads to ventricular fibrillation (VF), and together, they are among the most life threatening cardiac conditions. Although there are limited treatment options for this condition, the treatments available have reduced the mortality rate of people.…

    • 1061 Words
    • 5 Pages
    Improved Essays
  • Superior Essays

    The heart valves allow the blood to flow through the heart in one direction preventing backflow. The two types of valves are the atrioventricular valve and semilunar valve. The contraction of the heart is known as systole, and the relaxation is identified as the diastole. The heart has a pretty distinguishable beating sound to it caused by the closing of the heart valves. Along with chambers and valves the body has two circuits, pulmonary and systemic circuit.…

    • 1861 Words
    • 8 Pages
    Superior Essays
  • Improved Essays

    The primitive heart tube undergoes adjustments in the first trimester to become the heart. The heart is made up of four chambers: the right atrium, the left atrium, the right ventricle, and the left ventricle. There are two atrioventricular valves: the tricuspid valve in the right side and the mitral valve in the left side. There are also the pulmonary and aortic valves that originate from the right and the left ventricles.…

    • 507 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The Cardiovascular System: An Overview of Blood, Vessels, and Heart – Healthy to Diseased The cardiovascular system, also known as the circulatory system, consists of the heart, blood, and blood vessels (Mertz, 2004). The cardiovascular system moves oxygenated blood and nutrients through to and removes carbon dioxide and wastes out of the body’s cells. (Miracle of the Human Body, 2010) I will provide an overview how a healthy cardiovascular system does this by first discussing the anatomy of it, in a healthy state, and then the physiology of it, also in a healthy state, this will include how the pulmonary and systemic circuits work.…

    • 1002 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    Essay On Heart Disease

    • 2836 Words
    • 12 Pages

    The heart is an essential part of a human’s body. It is a muscular organ located at the center of the circulatory system that pumps blood throughout the body. The system comprises of veins, arteries, and capillaries, and these blood vessels carry blood to and from all areas of one’s body to sustain life. It beats around 100,000 times and pumps around 2,000 gallons per day. The heart is vital to one’s health and everything that goes on in his or her body.…

    • 2836 Words
    • 12 Pages
    Superior Essays