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Introduction to Anatomy & Physiology Anatomy is …. the structure of body parts Physiology is … the function of body parts Principle of Complementary of Structure and Function What a structure can do depends on its specific form There is organization in the body Anatomical Position Stand erect facing observer Head level, eyes facing forward Feet flat on floor, directed forward Arms at side, palms turned forward Regional terms to designate specific body areas Body Planes Superior Inferior Anterior or Ventral Posterior or Dorsal Median Lateral Proximal Distal Superficial Deep Plantar Palmar Directional Movement Reference Words Abduction – move away from body midline Adduction – move closer to body midline Extension – increase joint angle between articulating elements Flexion – reduce joint angle between articulating elements Body Cavities Ventral & Dorsal Cavities Ventral Cavity Thoracic cavity Abdominopelvic cavity Dorsal Cavity Imaging A = CT scan B = MRI The way you cut it makes a difference!