APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -EXAMPLES. Using the circulatory system as an example, a cell in this system is a red blood cell, the heart’s cardiac muscle is a tissue, an organ is the heart itself, and the organ system is the circulatory system. An organism is made up of four levels of organization: cells, tissues, organs, and organ systems.

Detailed explanation-2: -The following hierarchic levels of spiral organization of skeletal structures are defined: collagen chains, collagen molecules, microfibrils, fibrils, collagen fibers, osteon network and organization of osseous macrostructure responsible for torsion effect in weight bearing.

Detailed explanation-3: -The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.

Detailed explanation-4: -These include the chemical, cellular, tissue, organ, organ system, and the organism level. Higher levels of organization are built from lower levels.