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Intro to Dental A&P
Term | Definition |
---|---|
Anatomic Nomenclature | The system of names for anatomic structures |
Anterior | Front of an area in relationship to the entire body |
Posterior | Back of an area in relationship to the entire body |
Ventral | Directed toward the anterior |
Dorsal | Directed toward the posterior |
Superior | An area that faces toward the head and away from the feet |
Inferior | An area that faces away from the head and toward the feet |
Apex (plural apices) | Tip is the pointed end of a conical structure |
Midsagittal plane or median plane | Divides the body into equal right and left halves |
Sagittal Plane | Divides the body parallel to the midsagittal plane |
Coronal Plane or Frontal Plane | Divides the body at any level into anterior and posterior parts |
Transverse plane or Axial plane | Divides the body at any level horizontally into superior and inferior parts |
Median | A structure located at the midsagittal plane or median plane |
Medial | An area closer to the midsagittal plane or median plane of the body or structure within the body or structure as a whole |
Mesial | Of, relating to, or being the surface of a tooth that is next to the tooth in front of it or that is closest to the middle of the front of the jaw |
Lateral | An area farther from the midsagittal plane or median plane of the body or structure |
Proximal | An area closer to the midsagittal plane or median plane |
Distal | An area farther from the midsagittal plane or median plane in dentistry: of, relating to, or being the surface of a tooth that is next to the tooth behind it or that is farthest from the middle of the front of the ja |
Contralateral | A structure on the opposite side of the body |
Superficial | A structure located toward the surface of the body |
Deep | A structure located inward away from the body surface |
Internal | The inner side of the wall of a hollow structure |
External | The outer side of the wall of a hollow structure |
Midsagittal Section or Medial Section | A division by the midsagittal (or median) plane |
Sagittal Section | A division by any sagittal plane |
Coronal Section or Frontal Section | A division by any coronal (or frontal) plane |
Transverse Section or Axial Section | A division by any transverse (or axial) plane |