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Anatomy & Physiology

   Understanding Terminology
Fundamentals & Origin
O Learning medical terminology can seem
 overwhelming at first, but like all other
 languages, certain standard rules apply.
 For the most part, medical terminology is
 comprised of words derived from Greek
 and Latin languages. Understanding the
 way medical terms are formed and
 identifying the base of the words provides
 you with the foundation.
Formulating Words
O Medical terms can be broken into three distinct
  parts.
1. The word root – generally the central part of the
   word (in the middle) and identifies the main
   meaning, condition or body part.
2. The prefix – found at the beginning of the
   word, and distinguishes a component or
   subdivision of the word, to advance its
   fundamental meaning.
3. The suffix – found at the end of the word and
   signifies specific features, such as the
   circumstances of an aliment, its progression and
   the intended procedure or course of action that
   will be used.
Root Word
O Seeing as root words are the key
  terminology, you’ll want to familiarize
  yourself with them.
O Root words tells What we are talking
  about.

                Pericardium
               Cardi/o = heart
Prefix Suffix
O The Prefix tells of a position, a time when
  it occurs, where it is located, how many, or
  the color.
O The Suffix tells What is happening or
  describes the root word.
                 Pericardium
     Peri = around, surrounding, or outer
           ium = Latin noun ending
More Examples
                Epigastric
P:Upon/above R:stomach S:pertaining to
             Endometriosis
 P:within R:womb S:abnormal/condition
             Hyperglycemia
       P:above,more,over,excessive
                 R:sweet
              S:of the blood
Combining Forms & Modifying Word
             Meanings
Combining forms are the word root plus a vowel.
The most frequently used combining form is “o” and
tends to be located after the word’s prefix.
Again, this is best explained by seeing it on paper. In
the word myocarditis, we see that the Greek prefix
“my/mys” (muscle) the combining “o” form was
added, giving us “myo.” The “o” merges parts of the
word to create its definition. To better illustrate, take
a look at the following popular example: acr
(extremity), cardio (heart) and gastr (stomach). By
means of adding the combining form, “o” we get
acro/o, cardi/o and gastr/o.
Combining Forms & Modifying Word
             Meanings

The prefix and suffix of a root word also get
modified to alter the implication of a term
without changing its central meaning (the
root word remains the same). We can see
the way “myocarditis” can be changed by
switching the prefix. Replace “myo” with
“peri” (which means outer) or “endo”
(meaning inner), and you’ll have pericarditis
and endocarditis.
Combining Forms & Modifying Word
             Meanings
You should be able to have gauged their
meanings, since you’re familiar with the root
word and the prefixes. If we keep only the
root of the word – “cardio” and change the
suffix into “ologist” (physician/doctor that
specializes in the heart), “pathy” (meaning
damage) or “megaly” (which means
enlargement), we have three completely
different words:
cardiologist, cardiomyopathy, and
cardiomegaly. (medword.com)
Some Exceptions
O Not all words have a prefix
  (cardiovascular).
O Some words have more than one root
  word (cardiovascular).
O Different prefixes can have the same
  meaning.
  O Hom/o and Home/o = same
  O Di and Bi = two

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Understanding terminology

  • 1. Anatomy & Physiology Understanding Terminology
  • 2. Fundamentals & Origin O Learning medical terminology can seem overwhelming at first, but like all other languages, certain standard rules apply. For the most part, medical terminology is comprised of words derived from Greek and Latin languages. Understanding the way medical terms are formed and identifying the base of the words provides you with the foundation.
  • 3. Formulating Words O Medical terms can be broken into three distinct parts. 1. The word root – generally the central part of the word (in the middle) and identifies the main meaning, condition or body part. 2. The prefix – found at the beginning of the word, and distinguishes a component or subdivision of the word, to advance its fundamental meaning. 3. The suffix – found at the end of the word and signifies specific features, such as the circumstances of an aliment, its progression and the intended procedure or course of action that will be used.
  • 4. Root Word O Seeing as root words are the key terminology, you’ll want to familiarize yourself with them. O Root words tells What we are talking about. Pericardium Cardi/o = heart
  • 5. Prefix Suffix O The Prefix tells of a position, a time when it occurs, where it is located, how many, or the color. O The Suffix tells What is happening or describes the root word. Pericardium Peri = around, surrounding, or outer ium = Latin noun ending
  • 6. More Examples Epigastric P:Upon/above R:stomach S:pertaining to Endometriosis P:within R:womb S:abnormal/condition Hyperglycemia P:above,more,over,excessive R:sweet S:of the blood
  • 7. Combining Forms & Modifying Word Meanings Combining forms are the word root plus a vowel. The most frequently used combining form is “o” and tends to be located after the word’s prefix. Again, this is best explained by seeing it on paper. In the word myocarditis, we see that the Greek prefix “my/mys” (muscle) the combining “o” form was added, giving us “myo.” The “o” merges parts of the word to create its definition. To better illustrate, take a look at the following popular example: acr (extremity), cardio (heart) and gastr (stomach). By means of adding the combining form, “o” we get acro/o, cardi/o and gastr/o.
  • 8. Combining Forms & Modifying Word Meanings The prefix and suffix of a root word also get modified to alter the implication of a term without changing its central meaning (the root word remains the same). We can see the way “myocarditis” can be changed by switching the prefix. Replace “myo” with “peri” (which means outer) or “endo” (meaning inner), and you’ll have pericarditis and endocarditis.
  • 9. Combining Forms & Modifying Word Meanings You should be able to have gauged their meanings, since you’re familiar with the root word and the prefixes. If we keep only the root of the word – “cardio” and change the suffix into “ologist” (physician/doctor that specializes in the heart), “pathy” (meaning damage) or “megaly” (which means enlargement), we have three completely different words: cardiologist, cardiomyopathy, and cardiomegaly. (medword.com)
  • 10. Some Exceptions O Not all words have a prefix (cardiovascular). O Some words have more than one root word (cardiovascular). O Different prefixes can have the same meaning. O Hom/o and Home/o = same O Di and Bi = two