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Chapter 1 – " The Structure
of 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.
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Medical Words |
Word Parts |
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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
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Laryng/o-
Larynx (voice box) |
+ |
-itis
inflammation |
= |
Laryngitis
Inflammation of the voice box
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Combining Form – indicates body part |
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Suffix indicates condition - |
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Medical Term |
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
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Hypo-
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+ |
Glyc/o -
Sugar |
+ |
-emia
condition of the blood |
= |
Hypoglycemia Condition of low
blood sugar |
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Prefix –
Indicates amount |
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Combining Form -indicates substance |
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Suffix –
Indicates condition |
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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.
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.
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.
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
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
doctor
surgeon
nurse
technician
therapist
inpatient
ancillary
outpatient
ambulatory
rehabilitation
hospice
palliative
Suffixes
-al
-ar
-ary
-atic
-iatry
-ic
-ics
-ior
-logy
-ous
-eon
-ation
-ery
-gen
-ician
-ion
-ious
-ist
-ive
-ory
Abbreviations
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!
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