Transcript Pre-Dissection Activity

Cardiovascular System Vocab
 Echocardiogram
 Angina
 Arteries
 Myocardial Infarction
 Veins
 Arrhythmia
 Capillaries
 Embolism
 Cardiovascular Cycle  Thrombosis
 Coronary Arteries
 Aneurism
 Atherosclerosis
 Cardiologist
Arteries
Veins
 Carry blood AWAY from
 Carry blood TOWARD the
the heart
 All BUT pulmonary
arteries carry oxygenated
blood
heart
 All BUT pulmonary veins
carry deoxygenated blood
 Layers much thinner, less
 Aorta: largest artery; 1
elastic
inch in diameter
 Series of internal valves that
 Arterioles: smallest
arteries
 Coronary arteries: most
important; supply blood to
the heart muscle
work against the flow of
gravity to prevent reflux
 Superior and inferior vena
cava: largest veins
 Venules: smallest veins
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…
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
 EKG - Electrocardiogram
Cardiovascular
Technician
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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
Technologist
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 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”
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