medical terminology
TRANSCRIPT
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Medical Terminology
Porterville College
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Breaking Down Medical
Terms
Important Word parts:
Root: gives the essential meaning of
the term
Suffix: is the word ending
Prefix: is a small part added to the
beginning of a term
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Continued...
Combining vowel: connects roots to
suffixes and roots to other roots
Combining form: is the combination of
the root and combining vowel
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Start with the suffix…
When you analyze a medical term, begin
at the end of the word. The ending is
called a suffix.
All medical terms contain suffixes.
The suffix in HEMATOLOGY is –LOGY,
which means “study of ”.
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Next, read the beginning of the
word..
Now look at the beginning of the term.
HEMAT is the word root.
The root gives the essential meaning of
the term.
The root HEMAT- means “blood.”
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Combining vowel (s)…
The third part of this term, which is the
letter O, has no meaning of its own but is
an important connector between the root
(HEMAT) and the suffix (LOGY).
It is called a combining vowel.
The letter O is the combining vowel
usually found in medical terms.
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Putting it together…
Putting together the meaning of the
suffix and the root, the term
HEMATOLOGY means:
“the study of the blood”
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HEMATOLOGY
Root
(“blood”)
Combining
vowel
Suffix
(“study of”)
HEMAT / O / LOGY
Combining form
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Words with two roots… Each word root uses a combining vowel
Remember combining vowels connect roots to
suffixes and roots to other roots.
The combining vowel plus the root is called a
combining form.
How many combining forms are there in the
word:
ELECTROCARDIOGRAM ?
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ELECTROCARDIOGRAM
ELECTR / O / CARDI / O / GRAM
Root
(“electricity”)
Combining
vowel
Suffix
(“record”)
Combining
vowel
Root
(“heart”)
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TWO COMBINING FORMS
Roots: ELECTR/O = electricity
CARDI/O = heart
Suffix: GRAM = record
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ELECTROCARDIOGRAM
Thus the entire term means:
“record of the electricity in the heart”
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GASTROENTEROLOGY
GASTR / O / ENTER / O / LOGY
Root
(“stomach”)
Suffix
(“study of”)
Combining
vowel
Combining
vowel
Root
(“intestines”)
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GASTROENTEROLOGY
The two combining forms are GASTR/O
and ENTER/O.
The entire word (reading from the suffix,
back to the beginning of the term, and
across) means:
“study of the stomach and the intestines”
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GASTROSCOPE
GASTR / O / SCOPE
Combining form
(“stomach”)
Suffix
(“instrument
to visually
examine”)
“Instrument to visually examine the stomach”
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GASTRIC
GASTR / IC
Suffix
(“pertaining to”)Root
(“stomach”)
“Pertaining to the stomach”
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GASTR / IC
Notice that the combining vowel is
dropped when the suffix (-IC) begins
with a vowel.
Words ending in –IC are adjectives and
mean “pertaining to.”
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CARDIAC
CARDI / AC
Root
(“heart”)
Suffix
(“pertaining to”)
“Pertaining to the heart”
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CARDI / AC
Again, the combining vowel is dropped
when the suffix (-AC) begins with a
vowel.
Words ending in –AC are adjectives and
mean “pertaining to.”
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ENTERITIS
ENTER / ITIS
Root
(“intestines”)
Suffix
(“inflammation”)
“Inflammation of the intestines”
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ENTER / ITIS
Again, the combining vowel is dropped
when the suffix (-ITIS) begins with a
vowel.
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GASTROENTERITIS
GASTR / O / ENTER / ITIS
Root
(“intestines”)
Root
(“stomach”)
Suffix
(“inflammation”)
“Inflammation of the stomach and intestines”
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GASTR / O / ENTER / ITIS
Notice that the combining vowel (O)
remains between the two roots even
though the second root (ENTER) begins
with a vowel.
Remember combining vowels connect
roots to suffixes and roots to other roots.
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Now for the Prefix…
Many medical terms also have a word
part attached to the beginning of the
term. This is called a Prefix.
It can change the meaning of a term in
important ways
For example, watch what happens to the
meaning of the following medical terms
when the prefix changes…
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_____GASTRIC
PREFIX
SUB / gastr / ic = “pertaining to below
the stomach”
Prefix
(“below”)
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_____GASTRIC
PREFIX
TRANS / gastr / ic = “pertaining to across
the stomach”
Prefix
(“across”)
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_____GASTRIC
PREFIX
RETRO / gastr / ic = “pertaining to
behind the
stomach”
Prefix
(“behind”)
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REVIEW
Root: gives the essential meaning of the term
Suffix: is the word ending
Prefix: is a small part added to the beginning of a term
Combining vowel: connects roots to suffixes and roots to other roots
Combining form: is the combination of the root and combining vowel
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Important Rules to
Remember
Read the meaning of medical words from
the suffix to the beginning of the word
and then across.