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Question: answer all questions in bold when you are finished place...

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ANSWER ALL QUESTIONS IN Bold When you are finished place the assignment in the drop box on Blackboard The heart is a unique o
Cardiac muscle Cardiac muscle or myocardium contracts (beats) more than 2.5 billion times in an average lifetime. Like skelet
1. Cardiac muscle cell 2. Nucleus 3. Intercalated disk communication between the cells such that there is a sequential contra
The contractions of the myocardium are stimulated by an impulse sent out from small clump (SA node) of specialized tissue in
Blood Flow Through the Heart Blood flow through the heart (Hold control and click to watch video) How does blood flow through
Atrial contraction Right Side Blood flows from your right atrium into your right ventricle through the open tricuspid valve.
Ventricular contraction Oxygen and carbon dioxide travels to and from tiny air sacs in the lungs, through the walls of the ea
2. Draw a diagram of the heart and body tracing the blood flow from the right atrium and back. Include all three circuits (sy
Conduction Systenm Lets move on now to the electrical stimulation of the heart and the conductive tissues that carries this
From this point the impulse travels through the Bundle of His (atrioventricular bundle) down to the ventricles of the heart.
Conduction system of the heart (Hold control and click text to watch video) 4. Draw a diagram of the heart showing the comple
The ECG works mostly by detecting and amplifying the tiny electrical changes on the each heart muscle cell has a charge acros
Electrocardiogram ECG) QRS Duration Atrial Depolarisa Ventricular DepolarisationRepolarisation PR Interval OT Intverval virtu
5. Find a diagram or draw a diagram and label each of the intervals and in a key below describe what is occurring at each int
6. Research the following disorders of the heart, explain causes, symptoms and treatment of each condition. a. Heart Murmur b
j. Blood clots k. Heart failure
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