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Chapter 3. Directional Terms, Anatomic Planes, Regions, and Quadrants. Purpose of Directional Terms, . directional terms: used to describe the relative position of one part of the body to another. Anatomic Position.

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chapter 3
Chapter3

Directional Terms, Anatomic Planes, Regions, and Quadrants

purpose of directional terms
Purpose of Directional Terms,

directional terms: used to describe the relative position of one part of the body to another

anatomic position
Anatomic Position

Body is viewed as erect, arms at the side with palms of the hands facing forward, and feet placed side by side. Whether the patient is standing or lying down face up, the directional terms are the same.

combining forms for directional terms
Combining Forms for Directional Terms
  • anter/o
  • caud/o
  • cephal/o
  • dist/o
  • dors/o
  • infer/o
  • later/o
combining forms for directional terms1
Combining Forms for Directional Terms
  • medi/o
  • poster/o
  • proxim/o
  • super/o
  • ventr/o
slide7

Prefixes and Suffixes

  • Prefixes
    • bi-
    • uni-
  • Suffixes
    • -ad
    • -ior
directional terms
Directional Terms
  • anterior
  • anteroposterior (AP)
  • bilateral
  • caudal
  • cephalic
  • distal
  • dorsal
  • inferior
directional terms cont d
Directional Terms (cont’d)
  • lateral
  • medial
  • mediolateral
  • posterior
  • proximal
  • posteroanterior (PA)
  • superior
  • unilateral
  • ventral
purpose anatomic planes
Purpose Anatomic Planes

anatomic planes: used to describe the location of internal organs and structures

anatomic planes
Anatomic Planes
  • frontal or coronal: vertical field passing through the body from side to side, dividing the body into anterior and posterior portions
  • midsagittal: vertical field running through the body from front to back; divides body into right and left halves
anatomic planes1
Anatomic Planes

sagittal: vertical field running through the body from front to back—divides body into uneven right and left halves

transverse: horizontal field dividing the body into upper and lower portions

abdominopelvic regions
AbdominopelvicRegions
  • To assist medical personnel to locate medical problems with greater accuracy and for identification purposes, the abdomen is divided into regions:
abdominopelvic regions1
Abdominopelvic Regions

hypochondriac

(right & left)epigastric

lumbar (right & left)

umbilical

iliac (right & left)

hypogastric

abdominopelvic quadrants
Abdominopelvic Quadrants
  • Right upper quadrant: RUQ
  • Left upper quadrant: LUQ
  • Right lower quadrant: RLQ
  • Left lower quadrant: LLQ
abbreviations
ant

AP

inf

lat

LLQ

LUQ

Med

PA

RLQ

RUQ

Sup

Abbreviations