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Understanding Anatomical Position and Planes

May 13, 2025

Anatomical Position and Body Planes

Introduction

  • Purpose: Discuss anatomical position and body planes, and provide memory tricks.
  • Next Video: Will cover anatomical directional terms.

Anatomical Position

  • Definition: Standard body orientation for anatomical reference.
  • Position Details:
    • Standing upright
    • Head and eyes forward
    • Upper limbs at sides, palms forward, thumbs out
    • Feet together, flat on ground, facing forward
  • Right and Left: Refer to the patient's perspective, not the observer's.

Body Planes and Sections

  • Body Planes: Imaginary lines dividing the body.
    • Vertical or Horizontal: Divide body into sections.
  • Body Sections: Result from cuts along planes.

Major Body Planes

Sagittal Plane

  • Definition: Vertical plane dividing body into right and left.
  • Mid-sagittal Plane: Divides body into equal right and left portions.
  • Parasagittal Plane: Divides body into unequal right and left portions.
  • Memory Aid: "Sagittal" and "side view" both start with "S".
  • Examples:
    • Sagittal suture in skull.

Coronal Plane (Frontal Plane)

  • Definition: Vertical plane dividing body into front and back.
  • Memory Aid: "Frontal plane" gives front view.
  • Examples:
    • Coronal suture in skull.

Transverse Plane (Axial or Horizontal Plane)

  • Definition: Horizontal plane dividing body into top and bottom.
  • Memory Aid: "Transverse" and "T" for upper body.
  • Examples:
    • X-axis runs horizontally.

Minor Body Planes

Longitudinal Plane

  • Definition: Any plane perpendicular to transverse plane.
  • Includes: Sagittal and coronal planes.
  • Memory Aid: Longitudinal lines on a globe.

Oblique Plane

  • Definition: Any plane not vertical or horizontal.
  • Memory Aid: "Oblique" and "odd" both start with "O".

By understanding these concepts, you can have a clear framework when discussing and studying human anatomy. Watch future videos for more related topics.