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This chapter delves into the essential directional terms, anatomical planes, positions, and abdominal regions used in medical terminology. It outlines key abbreviations, such as AP (anteroposterior) and PA (posteroanterior), while providing a detailed overview of anatomical positions like supine and prone. Readers will learn about the various regions of the abdomen, including the umbilical and hypogastric regions, which are vital for medical professionals in diagnosis and treatment. Mastering these concepts is crucial for clear communication in healthcare settings.
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Chapter 3: Directional Terms, Planes, Positions, Regions, and Quadrants Medical Terminology
Chapter 3 Abbreviations • < • > • abn • abd • AP • CXR • L, LT = Less than = Greater than = Increase = Decrease = Abnormal = Abdomen = Anteroposterior (x-ray) = Chest x-ray = left
Chapter 3 Abbreviations • LAT • LLQ • LUQ • PA • R, RT • RLQ • RUQ • trans = Lateral = Left lower quadrant = Left upper quadrant = Posteroanterior (x-ray) = Right = Right lower quadrant = Right upper quadrant = transverse
Chapter 3 Abbreviations • HPI • postop • Preop • Prep • S/P or s/p • Gm,gm • mg = History of present illness = Postoperative = Preoperative = Prepare for = Status post = gram = milligram
Directional Terms • Anatomical Position • Body is viewed as standing erect, arms at the side, palms of the hands facing forward, and feet placed side by side
Word Parts for Directional Terms Combining Form Definition • anter/o • caud/o • cephal/o • dist/o • dors/o • infer/o • later/o • front • tail (downward) • head(upward) • away(from the point of attachment of a body part) • back • below • side
Word Parts for Directional Terms Combining Form Definition • medi/o • poster/o • proxim/o • super/o • ventr/o • middle • back/behind • near (the point of attachment of a body part) • above • belly (front)
Word Parts for Directional Terms Prefix Definition • bi- • uni- • two • one Definition Suffix • pertaining to • -ior, –ac, -ar, -ary, -eal, -otic
Directional Terms • lateral (lat) • pertaining to a side • medial (med) • pertaining to the middle
Directional Terms • Proximal • Pertaining to near (to the point of attachment) • Distal • Pertaining to away (from the point of attachment)
Directional Terms • inferior (inf) • Pertaining to below • caudal • pertaining to the tail • superior (sup) • pertaining to above • cephalic • pertaining to the head
Directional Terms • anterior (ant) • Pertaining to the front • ventral • pertaining to the belly • posterior • pertaining to the back • dorsal • pertaining to the back
Directional Terms • anteroposterior (AP) • pertaining to the front and to the back • posteroanterior (PA) • pertaining to the back and to the front
Anotomic Planes • Planes are imaginary flat fields used as points of reference • Frequently used in diagnostic imaging and surgery
Anatomic Planes • Frontal (Coronal) • Vertical field passing through the body from side to side, dividing the body into anterior and posterior
Anatomic Planes • Midsagittal • Vertical field running through the body from front to back at the midline, dividing the body equally into right and left halves
Anatomic Planes • Sagittal • Vertical field running through the body from front to back, dividing the body into right and left sides (any plane parallel to the midsagittal plane) • Parasagittal • Vertical field running through the body from front to back, dividing the body into unequal left and right sides
Anatomic Planes • Transverse • Horizontal field dividing the body into superior and inferior portions
Body Positions • Fowler position • Semi-sitting position with slight elevation of the knees
Body Positions • Prone • Lying on abdomen, facing downward (head may be turned to one side)
Body Positions • Supine • Lying on back, facing upward
Abdominopelvic Regions • Umbilical region (1) • Around the navel • Lumbar regions (2) • To the right/left of the umbilical region, near the waist • Epigastric region (1) • Superior to the umbilical region, generally above the stomach
Abdominopelvic Regions • Hypochondriach regions (2) • To the right/left of the epigastric region • Hypogastric region (1) • Inferior to the umbilical region • Iliac regions (2) • To the right/left of the hypogastric region, near the groin
Diagram(s) Planes Directionals • Midsagittal • Frontal • Transverse • Lateral/Medial • Anterior/Posterior • Proximal/Distal • Superior/Inferior