Transcript Heart Attack

CIRCULATORY
SYSTEM
CIRCULATORY
SYSTEM
• Also called the
cardiovascular
system, this system
carries lifesustaining nutrients
to all your cells, and
at the same time
picks up and
removes waste
(Circular- circle in
shape).
CIRCULATORY
SYSTEM
Circulatory System is
made up of:
• Heart
• Arteries
• Arterioles
• Capillaries
• Venules
• Veins
Heart
• The Heart is about the
size of your clenched
fist.
• It beats 60-80 times a
min. when you are
resting.
• Double Pump
• 4 chambers
– Right and Left
Ventricle and Atrium
Blood Circulation
• Right side =
oxygen-poor
blood from
body to lungs
(blue)
• Left Side =
oxygen-rich
blood from the
lungs to body
(red)
Arteries
• Arteries- are blood vessels that carry
blood away from the heart
• They have thick muscular walls.
• The aorta is the largest artery in the body.
• Arterioles- smaller branches of the
arteries, small muscular walls, that
expands and contracts to control the flow
of blood into the capillaries.
capillaries
• Capillariesmicroscopic
blood vessels
with extremely
thin walls,
nutrients can
pass through
out the system
through these
thin walls.
Veins
• Veins- are blood vesicles that carry blood
to your heart
• Have thinner walls than arteries, and have
valves that keep the blood from backing up.
• Venules- are small vessels that lead from
capillaries to veins.
Heart
Health
Disease
and
Disorders
Blood Pressure
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Hypertension (high blood pressure) Facts
50+ Million Americans (1 in 4 adults)
2/3 of Americans over age 65
1/3 of people with hypertension are unaware
that they have the disease
Contributes to 75% of all heart attacks and
strokes
Hypertension is directly related to the deaths of
45,000-50,000 Americans each year
Blood Pressure
Stage
Optimal
Prehypertension
Systolic Pressure
Under 120
(mm Hg)
120-139
Diastolic
Pressure
And Under 80
(mm Hg)
And 80-89
Hypertension- Stage 1 140-159
Or 90-99
Hypertension- Stage 2 160-179
Or 100-109
Hypertension- Stage 3 180-209
Or 110-119
Hypertension Stage 4
Or 120 or over
210 or over
Atherosclerosis
• Atherosclerosis- is a condition in
which fatty material builds up on
the walls of arteries and blocks
blood flow.
• Cholesterol- is the fatty material
that builds up
60% Build Up
97% Build Up
Cholesterol
Total Cholesterol Level Category
Less than 200 mg/dL
Desirable
200-239 mg/dL
Borderline High
240 mg/dL and higher
High
Heart disease and
heart attack
• Coronary Heart Disease- also called
coronary artery disease, occurs
when the coronary arteries become
clogged from atherosclerosis.
• Heart Attack- Is a sudden, lifethreatening event, when the heart
muscles do not receive enough
blood and portions of the heart
muscle die. Long term coronary
heart disease can lead a heart
attack.
• Heart Disease is the leading cause
of DEATH in the United States
• In 2001 709,894 deaths from heart
disease, that is 29.5% of all the
deaths that year.
So what causes this?
(
high blood pressure &
heart disease)
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Genetics/Family History
Smoking
Not getting regular aerobic exercising
Excessive alcohol intake
Stress
Salt intake
Not getting enough fruits and vegetables
Not getting enough minerals
Diets high in cholesterol and saturated fats
Diets high in trans fatty acids
Obesity
Anabolic steroids