Download ..Heart Sounds 1. There are 2 heart sounds:

..Heart Sounds
1. There are 2 heart sounds:
a. the 1st sound is the result of the closing of the
atrioventricular valves and the contraction of the muscles in
the walls of the ventricles. (ventricular systole) sounds like
the word "dud"
b. the 2nd sound represents the sudden closing of the
semilunar values sounds like the word "dip tt
What is Blood Pressure?
Both systolic and diastolic pressure are measured and the
results are expressed as a fraction such as 130180
(systolic/diastolic)
Maximum systolic - is the pressure when the initial tapping
sound is heard for at least two consecutive beats
Minimum diastolic - when pulse sound stops
The heart beat!
A person 15 years old resting 59-98 beats per min. 72
average
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· Iriteresting Facts
Canada, USA, England - high in Cardiovascular diseases
1 our of 5 people have a heart attack before the age of 60
The diameter of a capillary is approx 2mm
Strokes are caused by arteriosclorosis or hardening of the
arteries
Deprived of oxygen the brain will die in 6 min.
Arteries have three layers. The outer two are flexible. When
arteries of the brain become harder any sudden pressure change
will cause them to burst.
Some capillaries are only wide enough for one red blood cell to
pass through at a time.
Heart Beats 70 times min 120 thous per day.
Blood pressure goes from 120 to 330 from a sauna to cold
water.
People born with an anurism may die before they are 30.
Smokers are more than 1 If2 times more susceptible to having a
heart attack
Smoking, over~ating, and stress makes a person 10 times more
susceptible to heart attacks.