Differentiate between the following pairs on the basis of what is indicated within the brackets:
(a) Pulmonary artery and pulmonary vein (kind of blood)
(b) Artery and vein (direction of blood flow)
(c) Closed and open vascular system (definition)
(d) Bicuspid and tricuspid valve (location)
(e) Blood and lymph (composition
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a) Arteries carry blood away from the heart to the rest of the body. Veins push blood back to your heart.
b) arteries to capillaries to veins.
c) In closed circulatory system:- the heart pumps blood through vessels that are separate from the interstitial fluid of the body. In an open circulatory system:- the blood is not enclosed in the blood vessels, but is pumped into a cavity called a hemocoel.
d) Tricuspid valve - located between the right atrium and the right ventricle
Bicuspid valve - located between the left atrium and the left ventricle.
e) Composition: - It is majorly composed of interstitial fluid. i.e, the fluid that lies in the interstitial spaces of all body tissues, which is collected through lymph capillaries.
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