Chapter 1 Introduction to Medical Terminology 2009 Delmar

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Chapter 1 Introduction to Medical Terminology © 2009 Delmar, Cengage Learning

Chapter 1 Introduction to Medical Terminology © 2009 Delmar, Cengage Learning

Word Parts Are the Key! • Four basic types of word parts are used

Word Parts Are the Key! • Four basic types of word parts are used to create complex medical terms: – – Word roots Combining forms Suffixes Prefixes © 2009 Delmar, Cengage Learning

Word Roots • Word roots usually, but not always, indicate the part of the

Word Roots • Word roots usually, but not always, indicate the part of the body involved. © 2009 Delmar, Cengage Learning

Word Roots • Examples: – cardi – gastr – neur = heart = stomach

Word Roots • Examples: – cardi – gastr – neur = heart = stomach = nerve Note: Word roots do not mean pertaining to or relating to; that meaning comes from the suffix. © 2009 Delmar, Cengage Learning

Combining Forms • Created by adding a vowel (usually the letter “o”) to the

Combining Forms • Created by adding a vowel (usually the letter “o”) to the end of a word root. • Used when connecting word roots or when the word root is joined to a suffix that begins with a consonant. © 2009 Delmar, Cengage Learning

Combining Forms • Examples: – cardi/o – gastr/o – neur/o = = = heart

Combining Forms • Examples: – cardi/o – gastr/o – neur/o = = = heart stomach nerve © 2009 Delmar, Cengage Learning

Suffixes • Suffixes usually, but not always, indicate the procedure, condition, disorder, or disease.

Suffixes • Suffixes usually, but not always, indicate the procedure, condition, disorder, or disease. • Examples: – cardiomegaly – gastralgia – neuritis © 2009 Delmar, Cengage Learning

Prefixes • Prefixes usually, but not always, indicate location, time, number, or status. •

Prefixes • Prefixes usually, but not always, indicate location, time, number, or status. • Examples: – pericardium – epigastric – polyneuritis © 2009 Delmar, Cengage Learning

Determining Meanings on the Basis of Word Parts • Decipher these medical terms based

Determining Meanings on the Basis of Word Parts • Decipher these medical terms based on their word parts: – cardiologist – gastritis – neuralgia © 2009 Delmar, Cengage Learning

Additional Lessons in this Chapter • • Using a medical dictionary The sounds-like pronunciation

Additional Lessons in this Chapter • • Using a medical dictionary The sounds-like pronunciation system Why spelling counts Caution when using abbreviations © 2009 Delmar, Cengage Learning

Additional Lessons in this Chapter • Singular and plural endings • Basic medical terms

Additional Lessons in this Chapter • Singular and plural endings • Basic medical terms • Look-alike, sound-alike terms and word parts © 2009 Delmar, Cengage Learning