Determine whether or not vector field is conservative.If it is conservative,find a function f such that 
Definitions:
Superior Vena Cava
A large vein that carries deoxygenated blood from the upper half of the body into the heart's right atrium.
Venules
Small blood vessels that allow deoxygenated blood to return from the capillary beds to the larger blood veins.
Capillary Networks
A complex, interconnected web of capillaries that facilitates efficient exchange of oxygen, nutrients, and waste products between blood and tissues.
Laplace's Law
A principle that describes the relationship between the pressure, volume, and tension of spherical and cylindrical shapes, often applied in cardiovascular and respiratory physiology.
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