1 / 18

3.10 – Circulatory Disorders and Technologies

3.10 – Circulatory Disorders and Technologies. Diagnosis and Treatment. Electrocardiograph – an instrument that detects electrical signals of the heart Electrocardiogram – the graphical record produced by an electrocardiograph; shows the rate and rhythm of the heartbeat.

nemo
Download Presentation

3.10 – Circulatory Disorders and Technologies

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 3.10 – Circulatory Disorders and Technologies

  2. Diagnosis and Treatment • Electrocardiograph – an instrument that detects electrical signals of the heart • Electrocardiogram – the graphical record produced by an electrocardiograph; shows the rate and rhythm of the heartbeat

  3. Cardiac catheterization – the insertion of a catheter into the coronary artery through an incision in an artery in the groin. A dye that is visible on an x-ray is injected into the catheter. The catheter is threaded through the artery to the blocked area in the coronary artery. • Helps determine location of blockage

  4. Angioplasty – a procedure in which a blocked artery is opened by inflating a small balloon at the end of a catheter. • Stent– a small metallic mesh cylinder that is inserted into a blocked artery to allow blood to flow freely and to prevent the recurrence of the blockage

  5. Alternative Treatment – Bypass Surgery • Coronary bypass surgery – a vein graft is use to shunt the blood supply around the blocked area in a coronary artery • A piece of vein is taken from another part of the body (vein graft) and used to bypass the blocked area of the coronary artery in order to supply blood to areas beyond the blockage

  6. Cardiovascular Disease • Arteriosclerosis – a group of disorders that causes the walls of the blood vessels to thicken, harden, and lose their elasticity • Coronary artery disease – blockage of the arteries that supply blood to the heart muscle

  7. Arrhythmias – malfunctions of the electrical system that controls the heartbeat • Valve disorders – dysfunction of one or more of the heart valves • Heart muscle disease – inflammation or infection of the heart muscle

  8. Causes of Cardiovascular Disease • Atherosclerosis – a degeneration of the arteries caused by the accumulation of plaque along the inner wall • As fat droplets accumulate and grow larger, the slowly close off the opening of a blood vessel • Calcium and other minerals deposit on top of the fat, forming a plaque (sticky, yellow substance) • The build-up of plaque causes the artery to become narrow, increasing blood pressure, and can eventually cut off the blood supply completely • Leads to the decreased transport of O2 and other nutrients to parts of the body

  9. Myocardial infarction – death to the heart muscle tissue due to lack of oxygen and other nutrients (aka. Heart attack) • Usually occur when existing plaque breaks open and triggers the formation of blood clots on top of it • Symptoms: sharp chest pain, pain in the neck and arms, shortness of breath, nausea • Risk factors: smoking, physical inactivity, high blood cholesterol, high blood pressure, obesity, poor eating habits, diabetes, and heredity

  10. Prognosis and Prevention • Healthy lifestyle • No smoking, low-fat diet and healthy weight, exercise, manage stress

  11. Homework • Page 207 # 1-4, 6, 7

More Related