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[DOC File]Basic Electrophysiology - Triton College
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Myocardial tissue (cells) Is full of mitochondria it requires high level of ATP production for strong contraction and ejection of large amounts of blood into large blood vessels, like aorta. Types of junction. Tight and gap junctions. Conducting system of the heart. SA node AV node (bundle of His) bundle branches (right and left) Purkinje fibers
cardiac cell

[DOC File]14 CHAPTER 14
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These areas exhibit physiologic differences from the rest of the myocardium, forming a pathway for electrical impulses which energize the heart muscle. The two types of cardiac cells are contractive and conductive. When the cells are at rest, they are electrically more negative on the inside with respect to the outside of the cell.
cells of the heart

[DOCX File]WordPress.com
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Ion channels in pacemaker cells: see page 381. Slow initial depolarization caused by closing of K+ channels. Next funny channels open. Allow Na+ to enter causing depolarization. Only open briefly. This depolarization opens two types of Ca++ channels-T - type channels open briefly before inactivating - L - type channels then open finishing ...
the myocardium receives blood from

[DOCX File]Chapter 20
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14. When myocardial ischemia occurs, what is the reaction of the myocardium? What is the reaction of the body? Why is the body's response destructive to the myocardium? What drugs can prevent (or lessen) the body's response, thereby preserving myocardial cells? 15.
heart cell type

Cardiac muscle cell - Wikipedia
There are two types of cardiac muscle cells (myocardiocytes) in the heart: 1) Autorhythmic Myocardiocytes (~1%) Strategically located throughout the heart. 2) Contractile Myocardiocytes (~99%) Contract to generate force.
myocardium receives blood supply

[DOCX File]Yola
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-Myocardial cells- working or mechanical cells -Pacemaker cells- responsible for spontaneous generation and conduction of impulses -Electrical impulses are the result of brief but rapid flow of ions back and forth across the cell membrane
myocardial cells function

[DOC File]Heart Anatomy and Cardiac Muscle Cell Structure
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Chapter 20. The Heart. An Introduction to the Cardiovascular System. Learning Outcomes. 20-1. Describe the anatomy of the heart, including vascular supply and pericardium structure, and trace the flow of blood through the heart, identifying the major blood vessels, chambers, and heart valves.
death of myocardial cells

[DOC File]Pat Heyman
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Purkinje fibers: Large diameter cardiac muscle cells with few myofibrils. Many gap junctions. Conduct action potential to ventricular muscle cells * Note: The two nodes (SA & AV) & the conducting bundle (AV bundle) are modified cardiac muscle cells. The AV node gives rise to the conducting bundle of the heart, AV bundle (bundle of His).
2 types of cardiac cells

Two types of myocardial cells