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Understanding the Language of Anatomy: Terminology and Body Regions

Special terminology in anatomy ensures clarity in describing body regions, structures, and directional terms to avoid misunderstanding. Learn about body planes, cavities, quadrants, and major organs.

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Understanding the Language of Anatomy: Terminology and Body Regions

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  1. The Human Body: An Orientation

  2. The Language of Anatomy Special terminology is used to prevent misunderstanding Exact terms are used for Position Direction Regions Structures

  3. Regional Terms Anterior body landmarks Figure 1.5a

  4. Regional Terms Posterior body landmarks Figure 1.5b

  5. Directional Terms Table 1.1 (1 of 3)‏

  6. Directional Terms Table 1.1 (2 of 3)‏

  7. Directional Terms Table 1.1 (3 of 3)‏

  8. Body Planes and Sections A sagittal section divides the body (or organ) into left and right parts A median, or midsagittal, section divides the body (or organ) into equal left and right parts A frontal section divides the body (or organ) into anterior and posterior parts A transverse, or cross, section divides the body (or organ) into superior and inferior parts

  9. Body Planes and Sections Figure 1.6

  10. Body Cavities Dorsal body cavity -- protects the fragile nervous system organs Cranial cavity houses the brain Spinal cavity houses the spinal cord Ventral body cavity -- larger of the two closed body cavities Thoracic cavity houses heart, lungs and others Abdominopelvic cavity houses digestive system and most urinary system organs

  11. Body Cavities • Abdominopelvic Cavity – has two parts • Abdominal cavity – superior portion; contains the stomach, intestines, spleen, liver, & other body parts • Pelvic cavity – inferior part; lies within the bony pelvis; contains bladder, few reproductive organs,& rectum

  12. Body Cavities Figure 1.7

  13. Abdominopelvic Quadrants Figure 1.8a

  14. Abdominopelvic Regions Figure 1.8b

  15. Abdominopelvic Major Organs Figure 1.8c

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