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cardiovascular test.

Test on the cardiovascular system

Explain what makes a person have a specific blood type and Rh group. Blood type is based on the presence of two major antigens on red blood cell membranes, A & B. Rh is based on the presence of antigen D or other Rh antigens if present RH-positive.
Trace the path of a drop of blood through the heart. 1-2 DTPOMA (did thomas put on my apron) 1. Deoxyginated blood enters the r. atrium through the venae cavae & coronary sinus 2. Travels through the tricuspid valve into the r. ventricle.
List and explain the 4 factors that affect blood pressure. 1 Blood pressure is the force the blood exerts on the innerwall of the blood vessels. 1.Heart action- how much blood can enter the arterial system with each ventricle contraction.
Describe how cardiac conduction works 1-3 1.the S-A node sends an impulse to the atrial syncytium and the l & r atria contract. 2.The impulse passes along the junctional fibers and then to the A-V node. 3.From the A-V node it travels across the A-V bundle.
Explain the impact of Rh factor on pregnant women. When an Rh negative woman is pregnant with a Rh-positive fetus the first time nothing will happen, but the women will produce anti Rh antibodies. The second time the anti-Rh antibodies will attack the fetus.
Trace the path of a drop of blood through the heart. 3-5 DTPOMA 3. Goes through the pulmonary valve to the pulmonary arteries, to the capillaries in the lungs surrounding the alveoli 4. Oxygenated enters the l. atrium through the pulmonary veins 5. Passes through the mitral valve into the l. ventricle.
Trace the path of a drop of blood through the heart. 6 6. Enters the aorta and goes to the body
List and explain the 4 factors that affect blood pressure. 2-3 2. Blood volume- sum of the formed elements of the blood( effected by dehydration, hemorrhaging, & transfusions) 3. Peripheral resistance- friction between blood & the walls of blood vessels. ( caused by clots and fat)
List and explain the 4 factors that affect blood pressure. 4 4. Blood viscosity- how easily fluids flow past one another
Explain the difference between bradycardia and tachycardia. Bradycardia is when the heart beat is too slow, whereas tachycardia is when the heart beat is too fast.
Give a detailed description of how each, bradycardia and tachycardia are treated by the doctors at the Cleveland Clinic. To treat bradycardia doctors will insert a pacemaker to keep the heart rate regulated or regulate it with a medication. To treat tachycardia doctors can give a medication, insert a pacemaker or defibrillator, or preform an ablation procedure.
What is a pacemaker? How does a pacemaker work? What are the pros and cons of using a pacemaker for a treatment option? A pacemaker is a device that is implanted in the chest to regulate the heart rate. It works by sending electrical impulses through wires in the heart to regulate the heart rate. The pros of a pacemaker are that the heart rate is regulated.
Describe the ablation procedure In the ablation procedure a catheter is sent up through a vein in the patients leg and up to the heart. In the heart, the end of the catheter burns away the extra electrical pathway.
What is an ICD device? Why is it used and how does it work? is implanted into the chest right under the skin and has wires that lead to the heart to monitor the heart rate. It is used in people with abnormal heart rates to reset the heart beat to normal.
how does an ICD work? It does this by sensing if the heart rate is too fast and the ICD can increase the heart rate to reset it back to normal or deliver a shock to return it to normal rate.
The first speaker in the film mentioned that a heart is similar to a house in that it has a plumbing system and an electrical system. What did he mean by this statement? Give examples of a plumbing problem compared to a wiring problem in the heart. He meant that the heart involves two ways of functioning,the heart's pumping actions and the the electrical impulses that control the heart beat.plumbing is when the arteries are clogged and the heart has a hard time pumping.
Describe atrial fibrillation. A-fib is when the atria do not beat effectively and cannot completely pump blood out of them which can cause blood clots.
What types of symptoms does it cause? What are the long term problems with having an A-Fib? Describe the three common ways it can be treated. It causes symptoms like weakness, confusion, lightheadedness, and shortness of breath. Long term problems are stroke and heart failure. Ways that it can be treated are ablation, cardioversion, or inserting a pacemaker.
Does a person who has a sudden cardiac death (SCD) die because of a heart attack? Explain your answer. No, because sudden cardiac death is caused by a life threatening heart rate and a heart attack is when an area of the heart does not receive enough blood and the tissue dies.
How common are SCD's in the United States at this time? What are a person's chances of survival after an event? At this time 750 people die daily of sudden cardiac death in the United States. For every minute that passes,the person's chance of survival goes down by 10%.
What is an AED device? An AED is an automated external defibrillator that is used to deliver a shock to a person suffering from cardiac arrest.
Make a case for the importance of having AED devices in public places. if someone is suffering from SCD they need to be shocked and for every minute that passes their survival rate goes down. Without there would be more people dieing of SCD because of them not being able to have a shock administered to them.
Describe how cardiac conduction works 4-5 4. It enters the interventricular septum and divide into branches and travels to the purkinje fibers 5. The purkinge fibers branch into the cardiac muscle fibers and stimulate them causing the ventricular walls to contract.
Coverings of the heart Fibrous pericardium Parietal Pericardium Visceral pericardium
Wall of the heart epicardium myocardium endocardium
Blood Vessels arteries-arterioles-capillaries-venules-veins
Created by: meekhaley