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Chpt 4: E
Pig Disection: Circulatory System
11
Biology
12th Grade
02/13/2013
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Term
Pulmonary Arteries
 Definition
Arteries leading from the heart to the lungs
Term
Pulmonary Veins
 Definition
Veins leading from the lungs to the heart
Term
Root of the Lung
 Definition
Area where the pulmonary blood vessels and bronchi enter and leave the lung
Term
Interatrial Septum
 Definition
In and adult these separate the right and left atria
Term
Foramen Ovale
 Definition
Partly connects the right and left atria in the fetal pig
Term
Fossa Ovale
 Definition
A depression left from the foramen ovale when it permanently closes at birth
Term
Sinuatrial Node
 Definition
Also known as the pacemaker; it in initiates the rhythmic contraction of the cardiac muscles
Term
Right Atrioventricular Valve or Tricuspid Valve
 Definition
Three flaps make up this valve that is located between the right atrium and ventricle
Term
Pulmonary Valve
 Definition
Valve preventing blood in the pulmonary trunk from backing up into the right ventricle
Term
Left Artioventricular Valve or Bicuspid Vavle
 Definition
Two flaps make up this valve that is located between the left atrium and ventricle
Term
Aortic Valve
 Definition
Valve lying at the base of the aorta
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