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BLOOD

- performs a number of functions, all concerned in one way or another with transporting substances, regulating blood levels of particular substances, or protecting the body.

- blood is the only fluid tissue in the body

-it appears to be the thick, homogeneous liquid

- Bloods is a specialized CT

Plasma

- the nonliving fluid component of blood within which formed elements and various solutes

- separates two of the body's major fluid compartments

- much more than a passive envelope

FORMED ELEMENTS

- living blood cells that are suspended in a nonliving fluid matrix called plasma