Flow of blood vessel
structure and location
Matthew
Justin
Alex
Billy
Structure
WHAT IS THE DIFFERENCE BETWEEN
ARTERIES, CAPILLARIES AND VEINS?
http://www.phschool.com/science/biology_place/biocoach/images/cardio2/BlVesStr.jpg
Coronary System Location
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The coronary system is comprised of arteries,
arterioles, capillaries, venules and veins.
The coronary arteries originate as the right and left
main coronary arteries which exit the ascending
aorta just above the aortic valve
Coronary System Function
The coronary arteries supply blood to the myocardium
(heart tissue) itself: e.g., coronary capillaries deliver
oxygenated blood (nutrients) to all of the heart’s
cells
Coronary Artery Ostia
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There are three cusps of the aortic valve
o the non-coronary cusp
o the right coronary cusp
o left coronary cusp
The ostia of the left and right coronary arteries are
located just above the aortic valve
Oxygenated blood is pumped into the aorta from the
left ventricle; it then flows into the coronary artery
ostia. Blood flow into the coronary arteries is
greatest during ventricular diastole.
Superior Vena Cava
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Brings de-oxygenated blood to heart
Fed by veins in the head and upper body
Empties into the right atrium of the heart.
http://www.google.com/imgres?imgurl=http://www.daviddarling.info/images/superio
r_vena_cava.gif&imgrefurl=http://www.daviddarling.info/encyclopedia/S/superior_v
ena_cava.html&h=433&w=400&sz=61&tbnid=s6B84vI1QBR8YM:&tbnh=82&tbnw=
76&zoom=1&usg=__xa_RvhZ7u1m_inPd4jjQ4KWNczA=&docid=bHdBi1XDLVxUY
M&sa=X&ei=QYxxUdSqNtSr2AXN0ICoBQ&ved=0CE8Q9QEwBA&dur=287
Inferior Vena Cava
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Brings de-oxygenated blood to heart
Fed by veins below the heart in the body
Empties into the right atrium
http://www.google.com/imgres?imgurl=http://www.daviddarling.info/images/superio
r_vena_cava.gif&imgrefurl=http://www.daviddarling.info/encyclopedia/S/superior_v
ena_cava.html&h=433&w=400&sz=61&tbnid=s6B84vI1QBR8YM:&tbnh=82&tbnw=
76&zoom=1&usg=__xa_RvhZ7u1m_inPd4jjQ4KWNczA=&docid=bHdBi1XDLVxUY
M&sa=X&ei=QYxxUdSqNtSr2AXN0ICoBQ&ved=0CE8Q9QEwBA&dur=287
Aorta
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Location
o Anterior to trachea and esophagus,
on bifurcation of pulmonary artery.
Fun Facts
o Diameter of your thumb
Function
o Feeds the largest vessels in the
body with oxygen-rich blood
Pulmonary Artery
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The pulmonary artery is the vessel transporting deoxygenated blood from the right ventricle to the lungs.
A common misconception is that all arteries carry
oxygen-rich blood. It is more appropriate to classify
arteries as vessels carrying blood away from the heart.
Pulmonary Vein
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The pulmonary vein is the vessel transporting oxygenrich blood from the lungs to the left atrium.
A common misconception is that all veins carry deoxygenated blood. It is more appropriate to classify
veins as vessels carrying blood to the heart.
Fun Facts
Capillaries are very small, but there are millions of them.
Therefore, because the total cross-sectional area of all
the capillaries is so large, the blood flow through them is
correspondingly slow.
Blood flows from high pressure (in the arteries) to low
pressure (in the veins).
Arteriosclerosis, or "hardening of the arteries", the artery
walls lose their elasticity due to deposition of collagen
fibres: this is an ageing process.
The blood vessels fed by your heart are more than 60,000
miles long. They could wrap around the world twice.
Work Cited
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http://www.cardioconsult.com/Anatomy/#Coronary
Arteries
http://www.vhlab.umn.edu/atlas/coronaryarteries/coronary-artery-ostia/index.shtml
http://www.funtrivia.com/en/subtopics/Bloody-Vessels269439.html
http://www.2020site.org/fun-facts/Fun-Facts-About-theHeart.html