It shows the strength of the ventricle as it pumps blood‚ and it is a thicker muscle to pump stronger as it contracts 3. At what time during the contraction cycle was it possible to induce an extrasystole? The time during the relaxation part of cardiac cycle. 4. By clicking the Multiple Stimulus button and delivering 20 stimuli/sec‚ were you able to achieve tetanus? Why or why not? No‚ because of the long absolute refractory period‚ it cannot be tetanized by multiple stimuli. 5. What happens to
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First aid compilation What is first Aid? Is an immediate care given to a person who has been injured or suddenly taken ill. General objective’s of First Aid * To alleviate suffering * To prolong life * To prevent added/ further injury Different kinds of injuries and the procedure on how to give first aid said injuries: Minor burns * Procedure * Take the person away from the source of burning and let the airway of the victim be open. * You can remove
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Action potential‚ impulse conduction (italics)‚ and cardiac cycle (bold) Pacemaker cells in the SA node‚ found in the wall of right atrium‚ begin as polarized‚ with Na+ on the outside of the cell (sarcolemma) and the cell at its resting potential (-80 mV in the atria‚ -90 mV in the ventricles). The atria are full or filling with blood. The SA (and technically the AV) nodal cells gradually drift towards their threshold after each repolarization and depolarize (the prepotential: spontaneous depolarization)
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ANIMAL HISTOLOGY LAB REPORT OBJECTIVES • To identify the structure of various types of animal tissues • To explain the organization of the tissues HYPOTHESIS • Various type of tissues can be identified their function by observing the shape and structure of the cells because different tissues have different functions. • The usage of higher magnification of objective lens produces a better image. INTRODUCTION Internal structure of animal is made up cells. Cells aggregate and forms tissue. Animal
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Why are named drugs used in sports? When we exercise‚ there is an increase in the blood flow which provides the muscles with a constant supply of oxygen and nutrients and all the toxic waste products are removed from the body by this metabolism. There are many instances where an athlete has used a drug to enhance the desired output in an unfair and illegal manner. Such a practice is termed as “doping”. Eventually in the long run‚ the effect of drug taking leads to other mental disorders and even
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Name________________________ Date______________ Period____ Tissues Lab Directions: This lab is broken down into three sections: Epithelial Tissue‚ Connective Tissue‚ and Muscle & Nerve Tissue. For each section‚ read the background and answer any questions before you come to class‚ then in class sketch the specimens listed under each sketch circle. For your sketches‚ include the total magnification under which you viewed the specimen and be very detailed in your sketch. Epithelial Tissue
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Classification and Regulation of Classification and Regulation of Non-roller Type Cardiopulmonary Non-roller Type Cardiopulmonary Bypass Blood Pumps Bypass Blood Pumps 21 CFR 870.4360 21 CFR 870.4360 Catherine P. Wentz‚ M.S. Division of Cardiovascular Devices Office of Device Evaluation Food and Drug Administration Circulatory System Devices Panel Meeting December 6‚ 2012 Objective of This Panel Meeting Objective of This Panel Meeting Non-Roller type Cardiopulmonary Bypass Blood
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voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation. Defibrillation is a procedure used to treat life threatening conditions that affect the rhythm of the heart such as cardiac arrhythmia‚ ventricular fibrillation and pulseless ventricular tachycardia. The procedure involves the delivery of an electric shock to the heart which causes depolarisation of the heart muscles and re-establishes normal conduction of the heart’s
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Pulmonary arteries →Lungs →Pulmonary Veins→ left atrium →mitral/bicuspid valve→ Left ventricle→ aortic valve →Aorta → body SA node and AV node functions and locations SA node= upper‚ right atrium→heart rate AV node=lower‚ right atrium→ Relays cardiac impulses to the atrioventricular bundle Systole and diastole - what is happening during each of them? diastole=relaxation systole=contraction During diastole‚ the atria and ventricles of your heart relax and begin to fill
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the banded appearance of cardiac and skeletal muscles. Cardiac Muscle. Found only in the heart‚ cardiac muscle is responsible for pumping blood throughout the body. Cardiac muscle tissue cannot be controlled consciously‚ so it is an involuntary muscle. While hormones and signals from the brain adjust the rate of contraction‚ cardiac muscle stimulates itself to contract. The natural pacemaker of the heart is made of cardiac muscle tissue that stimulates other cardiac muscle cells to contract.
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