Block 3 - Unit 2 Medical Terminology Notebook




Gives you a better understanding of the equipment

Allows you to discuss equipment problems with the user

Helps you locate "unknown" equipment during routine preventive maintenance inspections

Structure of Medical Terminology

Language is standardized

Most often based on Greek or Latin terminology - always means the same thing

Assures a universal understanding of words

Constructs words systematically

Root Word - usually the organ or system being discussed - the anatomical part

Example: Cardi - Heart

Prefixes - used in conjunction with the root word to add specific meaning

Example: Peri - Around

Suffixes - also used to lend even more meaning to the root word - usually a condition

Example: Itis - Inflammation

Compound Words - Two or more roots words joined together

Example: Histo (tissue) and Ology (the study of) - Histology - the study of tissue, or Angio (vessel) and Gram (a recording) - Angiogram - the recording of a vessel

Word endings - vary depending on how the word is used - allow one basic word to be used many ways

UM or IUM makes the word a noun; Example: Gastrium (stomach)

AL would make the word an adjective; Example: Cardial (heart)

AC or IC simply means the word pertains to an item; Example: Hepatic

(pertaining to the liver)


Words dealing with anatomy

MY - Muscle; Example: Myocardium - heart muscle

NEPHER - Kidney; Example: Nephitis - inflammation of the kidney

NEUR - Nerve; Example: Neurology - the study of nerves

OPTHALM - Eye; Example: Opthalmalgia - a pain (ALGIA) in the eye

DERMAT - Skin; Example: Dermatitis - inflammation of the skin

CYT - Cell

Erythrocyte - a red (ERYTHRO) blood cell

Leukocyte - a white (LEUKO) blood cell

Macrocytes and Microcytes would be large (MACRO) and small (MICRO) cells respectively


Encephaloma is a tumor (OMA) inside (EN) the head

Hydroencephalic means excess water (HYDRO) in the head

ARTHR – Joint

Example: Arthroplasty is the repair (PLAST) of a joint

THORAX – Chest

Example: Pneumothorax - air (PNEUMO) trapped in the chest

CYST - Bladder or any sac filled with fluid

Example: Cystoplasty - the repair of the bladder

Words dealing with a condition

CARCIN - Cancer; Example: Carcinoma - a cancerous tumor

MEGAL - Large; Example: Megaloblast - a large stem cell (BLAST)

EMIA - Blood; Example: Leukemia - a condition dealing with white blood cells

PSYCH - Mind; Example: Psychology - the study of the mind

CYAN - Blue; Example: Cyanosis - a condition of blueness

Common prefixes

HYPER - Above; Example: Hyperactive

HYPO - Below; Example: Hypodermic - below the skin

SUPRA - Above; Example: Supracostal - above the ribs (COSTAL)

INFRA - Below / Beneath; Example: Infracostal - below the ribs

BRADY - Slow; Example: Bradycardia - slow heartbeat

TACHY - Fast; Example: Tachycardia - fast heartbeat

A or AN - Without; Example: Apnea - without breath (PNEA)

Common suffixes

OSIS - a condition

PENIA - a decrease in

Example: Thrombopenia - a decrease in platelets (THROMBO)

ECTOMY - Excision, from the root word TOME (to cut)

Example: Nepherectomy

OTOMY - Incision, from the root word tome

Example: Nepherotomy