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Chapter 3

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

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  1. Chapter3 Directional Terms, Anatomic Planes, Regions, and Quadrants

  2. Purpose of Directional Terms, directional terms: used to describe the relative position of one part of the body to another

  3. 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.

  4. Combining Forms for Directional Terms • anter/o • caud/o • cephal/o • dist/o • dors/o • infer/o • later/o

  5. Combining Forms for Directional Terms • medi/o • poster/o • proxim/o • super/o • ventr/o

  6. Prefixes and Suffixes • Prefixes • bi- • uni- • Suffixes • -ad • -ior

  7. Directional Terms • anterior • anteroposterior (AP) • bilateral • caudal • cephalic • distal • dorsal • inferior

  8. Directional Terms (cont’d) • lateral • medial • mediolateral • posterior • proximal • posteroanterior (PA) • superior • unilateral • ventral

  9. Directional Terms

  10. Purpose Anatomic Planes anatomic planes: used to describe the location of internal organs and structures

  11. 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

  12. 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

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

  14. Abdominopelvic Regions hypochondriac (right & left)epigastric lumbar (right & left) umbilical iliac (right & left) hypogastric

  15. Abdominopelvic Quadrants • Right upper quadrant: RUQ • Left upper quadrant: LUQ • Right lower quadrant: RLQ • Left lower quadrant: LLQ

  16. Abdominopelvic Quadrants

  17. ant AP inf lat LLQ LUQ Med PA RLQ RUQ Sup Abbreviations

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