Asked Aug 31, 2019

i need help understanding the directional terms and planes and sections terms


Expert Answer

Step 1

Directional terms are useful for describing relative locations of different body parts. The commonly used directional termms are described below:

  • Anterior- Direction towards the body.
  • Posterior-Direction away from the body.
  • Superior- A position above or higher than any other part of the body.
  • Inferior- A position below or lower than any other part of the body.
  • Lateral- Direction towards the side of the body.
  • Medial- Direction towards the middle portion of the body.
  • Proximal- A position in limb closer to the point of attachment or the trunk  of the body.
  • Distal-  A position in limb farther from the point of attachment or the trunk of the body.
  • Superficial- A position closer towards the surface of the body.
  • Deep- A position farther from the surface of the body.
Step 2

A plane is an imaginary two dimensional surface that passes through the body. These include:

  • Sagittal plane:  It is the plane that divides the body vertically into left and right sides. When this plane runs through the middle of the body, it is known as medial plane. If this plane divides the body into unequal left and right halves...

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