Thursday, 25 September 2014

   

The Hart


 

STRUCTURE
FUNCTION
DEOXY/OXY BLOOD
LEFT ATRIUM
Pumps blood into the left ventricle 
receives oxygenated blood  
LEFT VENTRICLE
pumps / releases  blood into into the whole body ( into tissues)  
oxygenated blood
RIGHT ATRIUM
pumps blood into the right ventricle 
dexygenated blood
RIGHT VENTRICLE
 pumps  blood to pulmonary valve and then pulmonary artery and then lungs.
de-oxygenated blood
PULMONARY ARTERY
 Pumps de-oxygenated blood from right ventricle to the lungs 
de- oxygenated 
AORTA
used as a chamber to pump blood to the aortic valve 
oxygenated 
PULMONARY VEINS
carries oxygenated blood from the lungs to the left atrium of the heart.
oxygenated
SUPERIOR VENA CAVA
brings deoigenated blood from the upper part of the body to the hear t
 d-eoxygenated 
INFERIOR VENA CAVA
brings deoxognated blood from the lower part of the body and brings it to the right atrium 
de-oxygenated
ATRIOVENTRICULAR VALVES (Mitral & Tricuspid)
separates the atria ventricles , allows blood to flow from the atria to the ventricles and prevents flow in the opposite direction
 Both 
CHORDAE TENDINAE
 protects the walls of the ventricles  ( fiber strings) 
 both
SEMI LUNAR VALVES (Pulmonary & Aortic)
control the blood from moving back into the ventricle
both
SEPTUM
sepetates the left atrium and ventrivle mixing with the rest.
N/A


The Coronary Arteries

The Coronary Arteries




The aorta is the largest artery. Its purpose is serve as  the main supplier of oxygenated blood.  It breaks into two small branches the right coronary artery and the left  , they are used so for the heart muscle. ( the heart needs blood too!) The right coronary artery supplies blood mainly to the right side of the heart and is usually smaller because the blood pumps only to the lungs.( a much smaller trip)
heart, following that the The left coronary artery supplies blood to the left side of the heart. The left side of the heart is larger and more muscular because it pumps blood to the rest of the body. ( it takes alot more effort.

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