HS111 Unit 4 Medical Term Construction Exercise Example

Course	HS111 Medical Terminology
Unit	Unit 4
Paper type	Term construction exercise
Length	About 570 words, 5 pages double-spaced
Format	APA 7 student paper
School	Purdue University Global
Program	BS in Health Science
Updated	October 2026

Free sample paper for HS111 Unit 4

From Definition to Term: A Unit 4 Term Construction Exercise Building Twelve Cardiovascular and Respiratory Words

[Student Name]

Purdue University Global

HS111: Medical Terminology

Unit 4 Term Construction Exercise

[Instructor Name]

[Date]

The terms are standard medical vocabulary; choices follow the textbooks cited.

What this part is doingStating that every choice between similar roots is explained tells the reader where the exercise's real work lies.

Method

For each definition, the needed meanings are listed first, then matched to word parts, then assembled with a combining vowel where two consonants meet. Where two roots share a meaning, such as cardi and coron for heart-related terms, the choice is justified by the term's standard form in the textbook (Ehrlich et al., 2021).

Cardiovascular

1. Slow heart rate. Meanings: slow, heart, condition. Parts: brady- + card + -ia. Term: bradycardia.

2. Fast heart rate. Parts: tachy- + card + -ia. Term: tachycardia.

3. Hardening of the arteries. Meanings: artery, hardening. Parts: arteri/o + -sclerosis. Term: arteriosclerosis. The root arteri is chosen over angi, which means vessel in general, because the definition names arteries.

4. Inflammation of a vein. Parts: phleb + -itis. Term: phlebitis. Phleb is used rather than ven/o because phlebitis is the standard term; ven/o appears in words such as venous and venipuncture.

5. Abnormal condition of the heart muscle. Parts: cardi/o + my/o + -pathy (disease). Term: cardiomyopathy.

6. Surgical repair of a vessel. Parts: angi/o + -plasty. Term: angioplasty. Angi is correct here because the procedure may involve any vessel, usually an artery.

Choosing between two roots with the same meaning is not guessing; the definition's own words, artery or vessel, usually decide it.

What this part is doingMaking the rule for choosing between roots explicit is what turns a list of answers into a demonstration of method.

Respiratory

7. Difficult breathing. Parts: dys- + -pnea. Term: dyspnea.

8. Absence of breathing. Parts: a- (without) + -pnea. Term: apnea.

9. Inflammation of the lungs. Parts: pneumon + -ia (condition). Term: pneumonia. Strictly, -itis would mean inflammation, but pneumonia is the established term; pneumonitis exists and usually refers to inflammation from non-infectious causes.

10. Visual examination of the bronchi. Parts: bronch/o + -scopy. Term: bronchoscopy.

11. Surgical puncture of the chest to remove fluid. Parts: thorac/o + -centesis. Term: thoracentesis. The o is dropped in common usage, a known exception (Gylys & Wedding, 2017).

12. Record of breathing measurements. Parts: spir/o + metr/o + -y. Term: spirometry, the process of measuring breathing; the record itself is a spirogram.

Why Construction Is Harder Than Decoding

Decoding a term only requires recognizing parts that are already there. Construction requires choosing among several parts that could carry the same meaning, knowing which suffix the field actually uses and remembering where common usage has broken the rules. In this exercise, half of the definitions could have been built two ways, and in three cases the shorter or more literal build was wrong. That is why the exercise asks for reasons beside each answer: a correct term without a reason could be a lucky guess, while a reason shows the choice can be repeated with new definitions. The skill matters at work, because charting and coding both require producing the right term, not just recognizing it.

Near Misses

Three near misses were worth noting. "Cardiosclerosis" is not a standard term for hardened arteries, even though the parts suggest it. "Pneumonitis" and "pneumonia" are not interchangeable. And -gram, -graph and -graphy are easy to confuse: the record, the instrument and the process.

What this part is doingRecording near misses shows the writer tested the method against its failures, not just its successes.

Check

Each constructed term was checked in the textbook index and in a standard dictionary (Venes, 2021). Ten matched exactly; thoracentesis and pneumonia required the notes above.

References

Ehrlich, A., Schroeder, C. L., Ehrlich, L., & Schroeder, K. A. (2021). Medical terminology for health professions (9th ed.). Cengage Learning.

Gylys, B. A., & Wedding, M. E. (2017). Medical terminology systems: A body systems approach (8th ed.). F. A. Davis.

Venes, D. (Ed.). (2021). Taber's cyclopedic medical dictionary (24th ed.). F. A. Davis.

Reading the HS 111 Unit 4 instructions

Unit 4 commonly asks students to build medical terms from definitions, choosing the correct prefixes, roots and suffixes and assembling them with combining vowels where needed. Expect ten to twenty definitions, often focused on one or two body systems. Instructors look for correct terms, visible reasoning about which parts were chosen and attention to cases where more than one root could carry the meaning. Some prompts ask students to explain the difference between related suffixes, such as -gram, -graph and -graphy. Terms that break the usual rules, such as those where the combining vowel is dropped in common usage, should be noted. Checking each constructed term against a reliable source is usually expected.

How the HS 111 Unit 4 example is put together

The exercise states its method, listing meanings, matching parts and assembling the term. Six cardiovascular items follow, with reasons for choosing arteri over angi in arteriosclerosis, phleb over ven in phlebitis and angi in angioplasty; the highlighted sentence explains how a definition's wording settles such choices. Six respiratory items follow, including notes on pneumonia, thoracentesis and spirometry. A section explains why construction is harder than decoding and why reasons matter. Near misses are recorded, and a final check reports that ten of twelve terms matched exactly, with notes for the other two. Every reason is written in a phrase beside the term, so the choices can be checked quickly.

HS111 Unit 4 rubric: what earns full points

Construction exercises are typically assessed on correctness of each term, quality of the reasoning shown, handling of near-equivalent parts, attention to exceptions and verification. Correctness usually carries the largest share, but many instructors weigh reasoning heavily, since a right answer without explanation may be a guess. Handling of near-equivalent roots earns credit when the choice is justified from the definition. Exceptions, such as dropped combining vowels or established terms that break literal rules, show depth when noted. Verification against the textbook or a dictionary is often required. Neat formatting and correct spelling throughout complete the score. Graders may also test a few constructed terms by decoding them back to the definition.

HS111 Unit 4 help from the desk

The most frequent error is building a term that is literally correct but not used, such as cardiosclerosis for hardened arteries. Another is choosing between two roots without a reason, which leaves the choice looking random. Some students confuse -gram, -graph and -graphy, or -scopy and -scope. Others forget to check spelling against a source, so a correct structure carries a typo. Skipping the near misses removes an easy chance to show understanding. If your section uses definitions from another system, perhaps the urinary or reproductive system, send the list, and an exercise can be prepared that builds each term with its reasons. Writing a term without its parts, so the reader cannot see how it was assembled, also loses points.

Get an HS111 Unit 4 example written to your instructions

Attach the Unit 4 definition list, the instructions and the rubric; a custom term construction exercise is returned within 24-48h with each answer built, split and reasoned in the order your prompt uses. Your first sample carries no fee. Mention the textbook edition too, so suffix meanings match the one you are graded against. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.

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HS111 Unit 4 questions, answered

What if two terms both fit a definition?

Pick the one the wording supports and say why in a phrase. A definition mentioning an artery points to arteri/o; one mentioning any vessel points to angi/o. Graders generally accept either where the definition is truly ambiguous, provided the reasoning shows the choice was deliberate. What they do not accept is a term that fits a different definition from the one given.

Is it acceptable to build a term that is not in the dictionary?

Only when the prompt invites it, and then it should be labeled as constructed. Medical vocabulary is conventional; parts can combine into words that are logically sound and never used. Where your textbook or a standard medical dictionary lists a term, use that one. Where none exists, a clearly marked constructed term with its reasoning shows the analysis without claiming more than it should.

How do I tell -gram, -graph and -graphy apart?

Think of them as the result, the tool and the act. An electrocardiogram is the tracing on paper or screen, an electrocardiograph is the machine that produces it, and electrocardiography is the procedure of recording. Definitions usually signal which is wanted with words like record, instrument or process. Matching that word to the ending solves most of the confusion in a construction set.

Where can I find a free HS111 Unit 4 sample paper?

This page presents the complete Unit 4 term construction exercise, building twelve cardiovascular and respiratory terms from definitions with reasons.

How do I choose between two roots with the same meaning?

Let the definition's wording decide. A definition that names arteries calls for arteri, while one about vessels in general calls for angi.