Post on 18-Jan-2016
Cardiovascular System VocabCardiovascular System Vocab
Arteries Arteries Carry blood AWAY from
the heart
All BUT pulmonary arteries carry oxygenated blood
Aorta: largest artery; 1 inch in diameter
Arterioles: smallest arteries
Coronary arteries: most important; supply blood to the heart muscle
Carry blood TOWARD the heart
All BUT pulmonary veins carry deoxygenated blood
Layers much thinner, less elastic
Series of internal valves that work against the flow of gravity to prevent reflux
Superior and inferior vena cava: largest veins
Venules: smallest veins
Veins
Capillaries Capillaries Tiny, microscopic
vessels
Walls one cell layer thick
Function: to transport and diffuse essential materials to and from the body’s cells and the blood
Did you know…Did you know…
You have approximately 100,000 miles of blood vessels in your body
Enough to circle the earth 4 times
Cardiovascular Cycle Cardiovascular Cycle
Coronary Arteries
Coronary arteries supply the heart with oxygen
If one or more become blocked, a heart attack can occur.
Bypass surgery is grafting arteries and veins taken from others areas the body to “bypass” or restore circulation to the blocked coronary artery
Coronary Artery Disease Coronary Artery Disease
Atherosclerosis – narrowing and stiffening of arteries due to fatty deposits
Angina – chest pain relieved by rest, sign of inadequate blood supply to heart
Heart Attack – (MI or Myocardial Infarction) cardiac muscle deprived of blood and oxygen due to a blocked artery
MedicineNet.com
Percutaneous transluminal coronary angioplasty is a surgical procedure in which a balloon catheter is inserted into a blocked blood vessel to increase the blood flow of that vessel.
Narrowed artery with balloon catheter positioned.
Inflated balloon presses against arterial wall.
Circulatory Disorders Circulatory Disorders Embolism – material that breaks away from its original site that
causes a blockage
Thrombosis – blockage of an artery or vein due to a blood clot
Aneurism – abnormal swelling of a weakened arterial wall that makes it bulge out like a balloon
Cardiovascular Technician
Cardiovascular Technician
EKG - Electrocardiogram
•Set up and administer EKGs, stress tests •Prepare patients for ambulatory monitoring•Edit and deliver final test results to physicians for analysis •Schedule appointments •Transcribe physicians' interpretations
1 year certificate programs prepared student for certification exam
EKG records electrical activity of the heart
Cardiovascular TechnologistCardiovascular Technologist
Echo - Echocardiogram
•Performs EKG •Performs Echocardiograms Discuss image results with the physician •Help physicians during invasive procedures, such as inserting catheters (small tubes)•Record findings and track patient records
2 year associate degree
Ultrasound equipment used to create images of the heart and blood vessels
Cool “Heart Sites”Cool “Heart Sites”Echocardiogram simulation
http://en.wikipedia.org/wiki/File:Apikal4D.gif
Heart Attack Video
http://video.about.com/heartdisease/Heart-Attack.htm
NOVA-Cut to the Heart:
http://www.pbs.org/wgbh/nova/heart/heartmap.html
Go With the Flow
http://www.smm.org/heart/videos/top.html#bypass
Heart Transplant Video
http://www.orlive.com/montefiore/videos/heart-transplant-procedure