Anatomy Chapter 1 - Chapter 1 Introduction to Anatomy...

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Chapter 1: Introduction to Anatomy Characteristics of Life Responsiveness/irritability: the ability to react to the environment Growth & development: the ability to grow Reproduction: continue the species. Movement: external (walking), internal (circulation) Metabolism: the sum total of all chemical reactions in a body Excretion: the ability to get rid of all metabolic wastes. Levels of structural organization Atom Molecule Macromolecule Organelle Cell Tissue Organ Organ system Organism Anatomical Direction Superior top Inferior bottom Anterior/ventral front Posterior/dorsal back Medial closer to the middle Lateral toward the side Intermediate between medial and lateral Ipsilateral same side of the body Contralateral opposite side of the body Proximal closer to the trunk Distal further from the trunk Superficial near the surface Peripheral near the surface, lateral position Deep away from the surface, internal Parietal forming outer wall of a body cavity Visceral covering the body organ Planes of the body Sagittal divides the body into left and right Midsagittal divides the body into equal parts

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