Pre-Dissection Activity

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Cardiovascular System Vocab

Echocardiogram

Arteries

Veins

Capillaries

Angina

Myocardial Infarction

Arrhythmia

Embolism

Cardiovascular Cycle

Thrombosis

Coronary Arteries

Aneurism

Atherosclerosis

Cardiologist

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

Veins

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

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

Capillaries

Did you know…

You have approximately

100,000 miles of blood vessels in your body

Enough to circle the earth 4 times

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

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

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

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 - Electrocardiogram

EKG records electrical activity of the heart

Cardiovascular

Technologist

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

Echo - Echocardiogram

2 year associate degree

Ultrasound equipment used to create images of the heart and blood vessels

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

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