Welcome to AHLT 52 -- Ms. Gallagher -- Home Page -- agallagher@bcconline.com -- Barstow Community College

Chapter 1 – " The Structure of Medical Language"

 

Medical Language

Just as the English language is made up of smaller words, medicine as a language is made up of smaller medical terms. The "roots" of medical terminology are based on the Latin spoken by ancient Greeks and Romans. We continue to use Latin for many of our medical terms because it is considered a "dead" language; in other words, there aren’t any "new" words or new meanings being added as it isn’t routinely spoken. For example, think of the word "web." Twenty years ago, you might have thought of a spider; today, the word "web" probably conjures up images of the internet and the "world wide web." Latin is also considered the "root" language for the "romance languages" (French, Italian, Spanish). If you speak any of these, you may find learning some of the terms slightly easier and familiar.

Medical Words

Word Parts

The individual terms used in medicine to describe location, description, quantity, etc.

Prefixes, Suffixes, and Roots that when combined make up medical terms

Combining Forms

  • Contains 2 parts:
    • Root – contains the medical meaning
    • Combining vowel – usually o or i placed at end of root, allows for additional word parts to join
       
  • Characteristics of a Combining Form
  • Every medical word has one
  • Gives word it’s medical meaning
  • One word may have multiple combining forms
  • Prefixes and / or suffixes change it’s meaning
  • Usually found in middle of word – BUT comes @ beginning of word if there is no prefix
  • Always ends with a hyphen (-) to show it’s not a complete word – no hyphen when attached to a suffix
  • See Figure 1-3, p. 10

Suffixes

  • Often indicate:
    • Term "pertains to…"
    • Disease description
    • Procedures or instruments
    • Medical specialties or specialists
  • Characteristics of a Suffix
    • Every medical word has one
    • Can be a single letter or a group of letters
    • Cannot be the main part of the word
    • Always found at end of word attached to the combining form
    • Sometimes a word has more than one suffix
    • Always begins with a hyphen (-) to show it’s not a complete word – no hyphen when attached to a combining form

Building Medical Words: Combining Forms and Suffixes

Laryng/o-

Larynx (voice box)

+

-itis inflammation

 

=

Laryngitis

Inflammation of the voice box

Combining Form – indicates body part

 

Suffix indicates condition -

 

Medical Term

  • Rules:

    • If the suffix begins with a vowel à delete the vowel at the end of the combining form

    • If the suffix begins with a consonant à keep the vowel at the end of the combining form

     

  • See Figure 1-4, Figure 1-5, p. 12

Pronouncing Medical Words: Combining Forms and Suffixes

Review "Pronouncing Medical Words Exercise", p. 20

Prefixes

  • Often indicate:
    • Location or direction
    • Amount or size
    • Time or speed
    • Characteristic
  • Characteristics of a Prefix
    • Optional – not every word has one
    • Can be one letter or a group of letters
    • Cannot be the main part of a word
    • Always found at beginning of word, before the combining form
    • Sometimes a word has more than one prefix
    • Always ends with a hyphen (-) to show it’s not a complete word – no hyphen when attached to a combining form

Building Medical Words: Prefixes, Combining Forms, and Suffixes

Hypo-

 

 

+

 

Glyc/o -

Sugar

 

+

 

-emia

condition of the blood

 

=

 

Hypoglycemia Condition of low blood sugar

Prefix –

Indicates amount

 

Combining Form -indicates substance

 

Suffix –

Indicates condition

 

Medical Term

Defining Medical Words: Prefixes, Combining Forms, and Suffixes

Here's a tip for breaking down medical terms into their meanings.  Standard forms (like driver's license or job applications) often require us to fill out information using our "last name," "first name," and "middle initial."  Medical terms can often be broken down the  same way.  Think of the suffix as a "last name," the combining form as the "first name," and the prefix as the "middle initial." 

In the above example of hypoglycemia, we can break it down like this:

1.  Last name:  -emia (a condition of the blood)

2.  First name:  glyc/o (combining form for sugar, i.e. glucose)

3.  Middle initial:  hypo (a prefix meaning low).

Using this tip, we can think of the meaning of hypoglycemia as "a condition of the blood in which glucose is lower than normal" or simply "low blood sugar."

Here's another:

Microhematuria

1.  Last name:  -uria (condition of the urine)

2.  First name:  hemat/o (blood)

3.  Middle initial: -micro (small, not visible to the naked eye)

We can think of the meaning of microhematuria as "a condition of the urine in which small amounts of blood are present" or simply, "small (or invisible) amounts of blood in the urine."

Note!  Some medical terms contain more than one combining form

Review" Medical Word Singular and Plural Nouns" p. 8

For this chapter, you are responsible for the following terms / word parts AND their meanings:

Combining Forms

  • Combining Forms found on top of p.21
  • Suffixes

  • Suffixes found on pp. 21-22
    • -ad
    • -al
    • -ar
    • -ary
    • -atic
    • -iatry
    • -ic
    • -ics
    • -ior
    • -logy
    • -ous
    • -eon
    • -ation
    • -ery
    • -gen
    • -ician
    • -ion
    • -ious
    • -ist
    • -ive
    • -ory

    Prefixes

  • Prefixes found on p. 22
    • ana-
    • endo-
    • epi-
    • hypo-
    • mid-
    • re-
    • a-
    • de-
    • dia-
    • pro-
    • re-

     

    The word parts found on the above pages make up the foundation of medical language. These are the basics…your future success in this course is dependent on your mastery of this initial vocabulary.

    Abbreviations p. 25

    Abbreviations are used whenever possible. As you will soon discover, many terms are long, difficult to pronounce, and harder to spell. Medical professionals use abbreviations also as a time saving tool for managing increasingly large patient loads. HOWEVER – medical abbreviations are standardized. You cannot shorten words as you see fit. You may use abbreviations as long as they are medically recognized and universally accepted. During this course, you will be responsible for memorizing common abbreviations that apply to the specialty being discussed.

  • Dx
  • SOAP
  • HIPAA
  • Chapter 2 – " The Body in Health"

    Body Planes

    A plane is an imaginary line used to better describe locations within or on the surface of the body.

    • Coronal / Frontal plane – vertical line that divides the body into front and rear sections see Figure 2-2, p. 36
    • Midsagittal plane – vertical line that divides the body in to equal left and right halves see Figure 2-6, p. 38
    • Transverse / Horizontal plane – horizontal line that divides the body into upper and lower sections see Figure 2-9, p. 39

    Directional Opposites

    For every movement the body is capable of making…the opposite movement must also be possible.

    Example:

     

    Make a muscle (like Popeye the Sailorman).

    To perform this movement, you had to bend your arm at the elbow. However, you cannot keep your arm in this position indefinitely (how would you be able to drive a car, eat a sandwich, or tie your shoes?).

    Now straighten out your arm.

    To perform this movement, you had to unbend your arm at the elbow.

    When using directional opposites, you are describing a relationship of one body part or position to another.

    • Anterior – front
    • Posterior – rear

    My bellybutton in anterior to my heels.

    My backbone is posterior to my breastbone.

    • Ventral - front, belly side
    • Dorsal - rear, back side
    • Prone - facing downward
    • Supine - facing upward

    When laying on your stomach – you are prone.

    When laying on your back – you are supine.

    • Medial - toward the middle
    • Lateral - toward the side

    My nose is medial to my ears.

    My arms are lateral to my chest.

    • Superior - upper portion
    • Inferior - lower portion

    My eyes are superior to my thighs.

    My feet are inferior to my knees.

     

    • Cephalad - toward the head
    • Caudad - toward the tailbone
       
    • Distal - moving away from the beginning point of the structure
    • Proximal – moving closer to the beginning point of the structure

    My toes are distal to my knee. (The hip is the beginning point of the leg – the toes are further away from the hip compared to the knee)

     

    My fingers are distal to my elbow. (The shoulder is the beginning point of the arm – the fingers are further away from the shoulder compared to the elbow)

     

    My forearm is proximal to my wrist. (The shoulder is the beginning point of the arm - the forearm is closer to the shoulder compared to the wrist)

     

    My hip is proximal to my ankle. (The hip is the beginning point of the leg – the hip is the beginning and therefore must be closer compared to the ankle)

     

    • Superficial – on or near the surface
    • Deep – below the surface

    My skin is superficial to my bones.

    My brain is deep to my skull.

     

    • External – outside
    • Internal – inside

    The hair on my head is external.

    My body organs are internal.

     

    Body Cavities

    A cavity is a hollow space within the body that holds internal organs. The cavities are supported and protected by membranes, muscles, and/or bone.

    See Figure 2-14, p. 42

    • Cranial cavity
      • Contains the brain and cranial nerves
      • Protected by the skull (cranium)
    • Spinal cavity
      • Contains the spinal cord
      • Protected by the backbones (vertebrae)
    • Thoracic cavity
      • Contains the heart, lungs, throat (esophagus), and windpipe (trachea)
      • Protected by the breastbone (sternum), rib cage, backbones (vertebrae)
      • Inferior border is the diaphragm
    • Abdominal cavity
      • Contains organs of digestion and elimination
      • Protected by abdominal muscles, lower portion of posterior rib cage, inferior portion of backbone (vertebral column)
    • Pelvic cavity
      • Contains organs of reproduction
      • Protected by pelvis, lowest portion of backbone (vertebral column)

    ¨¨ NOTE: Because the abdominal cavity has no distinct separation from the pelvic cavity – the two are often jointly referred to as the abdominopelvic cavity ¨¨

     

    Quadrants and Regions

    Because medicine needs to be as precise as possible when describing locations, the abdominopelvic cavity is further subdivided into quadrants and regions.

    • Quadrants
    • 4 subregions of the anterior area of the abdomen
    • To locate:
      • draw a vertical line from the top of your abdomen, directly through your bellybutton, to the bottom of your abdomen (this forms the left and right sides)
      • draw a horizontal line from the left side of your abdomen, directly through your bellybutton, to the right side of your abdomen (this forms the upper and lower portions)
      • see Figure 2-15, p. 44
    • Used to better assess specific organ(s) responsible for dysfunction

    Example:

     

    Walter complains that his tummy hurts. His mommy rubs it for him, asks does he need to use the restroom (he says no), makes him some chicken soup, and sends him to bed to lie down.

     

    After the pain worsened significantly through the night, Walter’s mom takes him to the doctor’s office first thing in the morning. She tells the nurse that Walter’s stomach has been hurting. The nurse, understanding how many organs are located within the abdomen, asks Walter to point to where his tummy is bothering him. Walter points to the lower right portion of this abdomen.

     

    Using her knowledge of medical anatomy, the nurse recognizes that the appendix is located in the right lower quadrant of the abdomen (RLQ) and pain in this area may signal a medical emergency – if the appendix ruptures, bacteria will invade the cavity and bloodstream placing a patient is at serious risk for infection, which if not caught early and left untreated will cause death.

     

    Walter is taken to the radiology department for an x-ray. The films show that Walter’s appendix is extremely enlarged and likely to burst at any moment. He is rushed to the operating room for surgery and Walter’s appendix is removed.

    • Regions
    • 9 subregions of the abdominopelvic cavity
    • To locate:
      • draw two vertical lines from the top of the abdominopelvic cavity to the bottom
      • draw two horizontal lines from the left side of the abdomen to the right side of the abdomen
      • the bellybutton should be in the center of the middle square
      • see Figure 2-16, p. 44
    • Used to provide more accurate description of location within the cavity

    You are not responsible for the Body Systems Approach – we will be studying the individual body systems throughout the course of this class. I encourage you to review pp. 45 – 51 as they are a preview of future class material.

    Vocabulary

    Vocabulary is an essential element of understanding Medical Terminology. Not all words can be broken apart and defined by their smaller word parts.

    You will be responsible only for the vocabulary terms discussed and listed in your study guides. However, you should be able to recognize and define vocabulary words that include a previously studied prefix or suffix. If that term contains a combining form, you are not responsible for knowing that word part – but the more you know, the easier medical terminology will be!

    Some chapters will have long vocabulary lists, others will have shorter lists. You should be sure to study the Vocabulary Review sections located in each chapter. Here you will find the vocabulary term, it’s combining form and definition, as well as a description.

    In addition to studying word structure and definition, in this course we also emphasize spelling. Incorrectly spelling a term may change the entire meaning of the term.

     

    Example:

    uvula – the small piece of tissue that hangs in the rear portion of the throat

    vulva – the female external genitalia

    In the above example, the terms look similar…but are two VERY different body parts!

     

    The following vocabulary terms represent the basic terminology used in medicine. The terms in this chapter are essential to your later success with understanding and comfortably using medical terminology to describe body systems, organs, and movements associated with each.

     

  • Anatomical position

  • Anatomy

  • Health

  • Macroscopic

  • Mediastinum

  • Microscope

  • Physiology

  • Viscera

  • Body in Disease

     

    You are responsible for all of the vocabulary terms found on pp. 62 – 65

    Healthcare Professionals and Healthcare Settings

    • physician
    • doctor
    • surgeon
    • nurse
    • technician
    • therapist
    • inpatient
    • ancillary
    • outpatient
    • ambulatory
    • rehabilitation
    • hospice
    • palliative

    Suffixes

    • -ad
    • -al
    • -ar
    • -ary
    • -atic
    • -iatry
    • -ic
    • -ics
    • -ior
    • -logy
    • -ous
    • -eon
    • -ation
    • -ery
    • -gen
    • -ician
    • -ion
    • -ious
    • -ist
    • -ive
    • -ory

    Abbreviations

    • Dr.
    • Dx
    • Hx
    • PE
    • RN
    • Sx
    • Tx
    • PCP

    Lesson 1: Introductions

    Tell us about yourself. Include the following:

    your major, your educational goals, and what you hope to achieve in this course, and also include where you live (city and state are fine).

    Lesson 1: Quiz

    Don't forget to take the quiz by clicking the button below between the dates/times stated on the homepage of the course.

    Remember the quiz is timed! 

    click here to go to the index page click here to email the instructor click here to go to the discussion group click here to take the quiz