Med. Term. 1a
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Transcript of Med. Term. 1a
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Medical Terminology Chapter 1: Basic Term Components
Gus: Now, gimme a word, any word, and I'll show you how the root of that word is Greek.
Okay? How about arachnophobia? Arachna, that comes from the Greek word for spider, and
phobia is a phobia, is mean fear. So, fear of spider, there you go.
Schoolgirl: Okay, Mr. Portokalos. How about the word kimono?
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Etymology
Etymology is the study of the origins and historical meanings of words
[Gr. etymos, true, real, actual + -logia "study of, a speaking of]
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Etymology of English Medical Terms
1. Compound Terms
Osteoarthrotomy (st--r-thrt-m) [Gr. osteon, bone + arthron, joint + tome, incision] Surgical excision of the articular end of a bone
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Etymology of English Medical Terms
1. Compound Terms
2. Loan Words
Angina (an-jn, anj-) [L. angina, quinsy, fr. angere, to choke] 1. Angina pectoris 2. Acute sore throat
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Etymology of Medical Terms
1. Compound Terms
2. Loan Words
3. Eponyms [Gr. epi, upon + onyma, name]
Hippocratic Facies Proteus
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Etymology of Medical Terms
mithradatism [Mithridates, king of Pontus, 132-63 b.c., supposed to have acquired immunity in this fashion]
pons pl. pontes [L., bridge]
eccentric [Gr. ek, out, + kentron, center]
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Are there any practical benefits to the continued use of Greek and Latin in medical terminology?
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Practical Reasons for the Use of Greek and Latin in Medical Terminology
1. Easily combined
Myelomeningocele = myelo- + meningo- + -cele
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Practical Reasons for the Use of Greek and Latin in Medical Terminology
1. Easily combined
2. Medicine and the natural sciences often use the same Greek and Latin words and word elements
L. cortex, corticis, bark
adrenocorticotrophic
corticiferous
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Practical Reasons for the Use of Greek and Latin in Medical Terminology
1. Easily combined
2. Medicine and sciences often use the same Greek and Latin words and word elements
3. Partial restoration of an international language
arteriosklerose (German)
artriosclrose (French)
arteriosclerosi (Italian)
arteriosclerosis (English)
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Why are most medical terms derived from Greek words?
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Ancient Greek Medicines Origins
Hippocratic Corpus and Hippocrates
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Ancient Greek Medicine Theories
Naturalism
Humoralism
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Ancient Greek Medicines Influence
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Ancient Greek Medical Terms
Ancient Terms for Disease
Melancholia, Gonorrhea, Carcinoma
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Ancient Greek Medical Terms
Ancient Terms for Disease
Descriptive in nature
Amnion
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Why are there so many Latin words in medical terminology?
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Assimilation of Greek medicine into Roman culture
Conquest of Greek lands
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Assimilation of Greek medicine into Roman culture
Conquest of Greek lands
Greek medical theories and words translated into Latin
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Assimilation of Greek medicine into Roman culture
Conquest of Greek lands
Greek medical theories and words translated into Latin
Latin became the lingua franca of European academics
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Assimilation of Greek medicine into Roman culture
Conquest of Greek lands
Greek medical theories and words translated into Latin
Latin was the lingua franca of European academics
Today Latin is the language of anatomical and biological nomenclature systems
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Latinization of Greek Terms
Change Letters
= Bronchos
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Latinization of Greek Terms
Change Letters
= bronchos
Endings
-os to -us, bronchos = bronchus
-e to -a, theke = theca
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Substitution
encephalos = cerebrum
karkinos = cancer
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Synonyms in Medical Terminology
Greek
nephr/o (nephros)
odont/o (odous)
omphal/o (omphalos)
mast/o (mastos)
Latin
ren/o (ren)
dent/o (dens)
umbilic/o (umbilicus)
mamm/o (mamma)
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Basic Term Components
Most medical terms have three components:
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Root
Root Greek or Latin Example
Angi- Angion Angitis
Aden- Aden Adenitis
Cortic- Cortex, Corticis Corticitis
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Root
Medical terms often contain more than one root:
hydromyelia
HYDR- (root), water + MYEL- (root), spinal cord + -IA (suffix) condition of
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Suffix
Suffix Part of Speech Meaning Example
-IC Adjective pertaining to phobic
(pertaining to
fear)
-IA Noun state or condition
of
hemiplegia
(condition of
paralysis of half
the body)
-ATE Verb to put into action,
perform
ligate (to apply a
ligature)
-AD
Adverb
in the direction
of; toward
cephalad (toward
the head)
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Compound Suffixes and Suffix Forms
Greek or
Latin Root
Suffix Compound
Suffix
Meaning Example
stenos
(narrowed)
-OSIS
(condition)
-STENOSIS condition of
narrowed
angiostenosis
raphe (suture) -Y
(act of)
-RRHAPHY act of suturing angiorrhaphy
poiein (to
make)
-ESIS
(state of)
-POIESIS making of,
formation of
angiopoiesis
gramma, that
which is drawn
-GRAM Record arthrogram
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Prefix
Prefix Meaning Example
EU- Normal eupnea (normal
breathing)
DYS- Difficult dyspnea (difficulty
breathing)
INTRA- Within intracystic (pertaining to
within a bladder)
EXTRA- Outside extracystic (pertaining to
outside a bladder)
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Prefix
Not every medical term begins with a prefix:
anterolateral
ANTER- (root) front + LATER- (root) side + -AL (suffix) pertaining to
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Prefix
In some instances, more than one prefix may be attached to a single term:
subendocardial
SUB- (prefix) under + ENDO- (prefix) within + CARDI (root) heart + AL (suffix) pertaining to
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Forming Compound Terms
Elision
meso- (prefix) + enter- (root) + on (suffix) = mesenteron
peri- (prefix) + cardi- (root) + itis (suffix) = pericarditis
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Forming Compound Terms
Elision
Assimilation
con + rugator = corrugator
in + perfect = imperfect
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Combining Vowel
A combining vowel is used to join a root to another root or to a suffix. The vowels most commonly used are o and i; vowels such as a, y, and u are sometimes use, albeit far less often.
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Combining Vowel A combining vowel does not add any meaning to the
word; it is used simply for the sake of euphony.
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Combining Vowels
A root with a combining vowel is commonly referred to as a combining form.
Root Combining
Vowel
Combining
Form
Example
HYDR- O HYDR/O hydrophobia
CEREBELL- I CEREBELL/I cerebellipetal
CEREBELL- O CEREBELL/O cerebellospinal
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Basic Term Components
Hyperlipemia
Prefix hyper-
Root lip
Combining form lip/o
Suffix -emia
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Word Analysis
Microlithiasis
Rhinostenosis
Carcinophobia
Hypoesthesia
Pericardium
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For Next Lecture
Continue to study tables entitled Common Suffixes, Common Prefixes, and Common Combining Forms.
Definitions, Spelling, Plurals