Transcript Ch 5 The Cardiovascular System

Ch 5 The Cardiovascular System
Overview
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Heart:cardi/o> Pumps blood into the arteries.
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Arteries: arteri/o> Transports blood away to all body
parts (thick).
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Capillaries: capill/o> Exchanges nutrients and waste
products with cells.
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Veins: phleb/o, ven/o> Returns blood to the heart (thin).
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Blood: hem/o, hemat/o> Brings oxygen and nutrients to
all cells and carries away waste. Plays several important
roles in the immune and endocrine systems.
Review Heart Pathway
Arrhythmias:
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Cardiac arrhythmia- is an irregularity or the loss of normal
rhythm of the heartbeat.
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Bradycardia- is an abnormally slow heartbeat (less than 60
beats per minute).
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Palpitation- is a pounding of a racing heart with or without
irregularity in rhythm. This is associated with certain heart
disorders or a panic attack.

Tachycardia- is an abnormal fast heartbeat (greater than 100
beats per minute).
Cholesterol
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Cholesterol- consists of lipids (fatty substances) that travel in the blood in
packages called lipoproteins.
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Low-density lipoproteins (LDL)- bad cholesterol that when in excess clogs
the arteries. Your number should be less than 200.
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High-density lipoproteins- good cholesterol because it carries unneeded
cholesterol back to the liver for processing and does not contribute to plaque
build up. Your number should be more than 35.
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Triglycerides- are combinations of fatty acids attached to glycerol that are
also found normally in the blood in limited quantities. Your number should be
less than 110.

Hyperlipidemia- is a general term for elevated plasma concentrations of
cholesterol, triglycerides, and lipoproteins. The levels of each of these
substances can be measured by a blood test.
Blood Types As Donors and Recipients:
Ch 5 Terms
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aort/o aorta
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ary pertaining to
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ateri/o artery
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brady- slow
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cardi/o- heart
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emia- blood, blood condition
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erythr/o red
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phleb/o vein
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super, supra above, upper, excessive
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thromb/o clot
Words
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Anemia> a disorder characterized by lower than normal levels of red blood
cells in the blood
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Aorta> the main trunk of the arterial system and begins from the left ventricle
of the heart
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Arterioles> the smaller thinner branches of the arteries, carries blood to the
capillaries
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Cardiologist> A specialist in diagnosing and treating abnormalities, diseases,
and disorders of the heart
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Coronary Artery Disease> atherosclerosis of the coronary arteries that may
cause a heart attack
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Erythrocytes> red blood cells
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Bradycardia> an abnormally slow heartbeat
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Phlebitis> inflammation of veins
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Superior vena cava> brings blood from the upper portion of the body
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Thrombosis> an abnormal condition in which a blood clot develops within a
blood vessel