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scler/o
hardening, sclera
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ventricul/o
ventricle (of heart or brain)
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-graph
instrument for recording
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-graphy
process of recording
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-stenosis
narrowing, stricture
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atel/o
incomplete, imperfect
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dys-
bad, painful, difficult
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hyper-
excessive, above normal
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sial/o
saliva, salivary gland
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pharyng/o
pharynx (throat)
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pylor/o
pylorus, pyloric sphincter
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enter/o
intestine (usually small intestine)
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dys-
painful, bad, difficult
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hyper-
excessive, above normal
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trigon/o
trigone (triangular region at base of the bladder)
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ur/o
urinary tract, urine
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albumin/o
albumin (protein)
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kal/i
potassium (an electrolyte)
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ket/o
ketone bodies (acids and acetones)
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keton/o
ketone bodies (acids and acetones)
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ur/o
urine, urinary tract
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urin/o
urine, urinary tract
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dys-
bad, painful, difficult
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hyper-
excessive, above normal
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gonad/o
gonads, sex glands
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vas/o
vessel, vas deferens, duct
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para-
near, beside, beyond
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phim/o
- muzzle
- restrains & has a tightening effect
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kerat/o
horny tissue, hard, cornea
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scler/o
hardening, sclera
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hyper-
excessive, above normal
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-logist
specialist in the study of
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anterior (ventral)
front of the body; toward the front
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deep
away from the surface
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distal
farther from the point of attachment to the trunk or a structure
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external
outside, exterior to
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inferior (caudal)
below; towards the tail
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internal
within; interior to
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lateral
pertaining to the side; toward the side
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medial
pertaining to the middle; toward the midline
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posterior (dorsal)
back of the body; near the back
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proximal
near the point of attachment to the trunk or a structure
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parietal
pertaining to the outer wall of a body cavity
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superficial
toward or on the surface
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superior (cephalic, cranial)
above; toward the head
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visceral
pertaining to the covering of an organ
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midsagittal (median) plane
a vertical plane that passes through the midline of the body & divides the body or organ into equal right and left sides
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sagittal plane
a plane that is parallel to a midsagittal plane that divides the body or organ into unequal right & left sides
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frontal (coronal) plane
a plane from side to side that separates the body into anterior (front) and posterior (back) portions
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transverse (horizontal) plane
a plane that separates the body into superior (upper) and inferior (lower) portions
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fibr/o
fiber, fibrous tissue
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sarc/o
flesh (connective tissue)
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cervic/o
neck, cervix uteri (neck of the uterus)
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coccyg/o
coccyx (tailbone)
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ili/o
ilium (lateral flaring portion of hip bone)
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lumb/o
loins (lower back)
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umbilic/o
umbilicus, navel
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vertebr/o
vertebrae (backbone)
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dors/o
back (of the body)
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later/o
side, to one side
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poster/o
back (of the body), behind, posterior
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ventr/o
belly, belly side
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-o/centesis
surgical puncture
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-ectomy
excision, removal
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-o/stomy
forming an opening (mouth)
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-o/lysis
separation, destruction, loosening
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-o/desis
binding, fixation (of a bone or joint)
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-o/pexy
suspension, fixation (of an organ)
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-o/plasty
surgical repair
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-o/graph
instrument for recording
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-o/graphy
process of recording
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-o/meter
instrument for measuring
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-o/metry
act of measuring
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-o/scope
instrument to view or examine
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-o/scopy
visual examination
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Medical Word Building Rules
- 1. A word root is used to link a suffix that begins with a vowel.
- 2. A combining form (root+o) is used to link a suffix that begins with a consonant.
- 3. A combining form (root+o) is used to link multiple roots even if a root begins with a vowel.
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-ectasis
dilation, expansion
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-iasis
abnormal condition (produced by something specific)
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-o/penia
decrease, deficiency
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-o/plasia
formation, growth
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-o/plasm
formation, growth
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-o/rrhage
bursting forth (of)
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-o/rrhagia
bursting forth (of)
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-osis
abnormal condition increase (used only with blood cells)
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-o/spasm
involuntary contraction, twitching
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-o/stenosis
narrowing, stricture
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-o/trophy
development, nourishment
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adjective suffixes meaning "pertaining to, relating to"
-ac, -al, -ar, -ary, -eal, -ic, -ical, -ile, -ory, -ose, -ous, -tic
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-iatry
medicine, treatment
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dys-
bad, painful, difficult
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hyper-
excessive, above normal
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syn-
union, together, joined
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