2017. augusztus 4., péntek

Szervezetünk CPU-ja: a máj !

Each tissue and organ of the human body has a specialized function that is reflected in its anatomy and its metabolic activity. Skeletal muscle, for example, uses metabolic energy to produce motion; adipose tissue stores and releases fats, which serve as fuel throughout the body; the brain pumps ions to produce electrical signals. The liver plays a central processing and distributing role in metabolism and furnishes all the other organs and tissues with a proper mix of nutrients via the bloodstream. The functional centrality of the liver is indicated by the common reference to all other tissues and organs as "extrahepatic" or "peripheral." We therefore begin our discussion of the division of metabolic labor by considering the transformations of carbohydrates, amino acids, and fats in the mammalian liver. This is followed by brief descriptions of the major metabolic functions of adipose tissue, muscle, the brain, and the tissue that interconnects all others: the blood.

Lehninger-Nelson-Cox: Principles of Biochemistry, 736.o.

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Szószedet: homeostasis (önbévület*)

homeostasis : The maintenance of a dynamic steady state by regulatory mechanisms that compensate for changes in external circumstances. ___...