Anatomy & Terminology to Start On

If you only do one thing before class, learn the language. When the words are already familiar, lecture makes sense the first time and the textbook stops feeling like a foreign language.

Medical terms are built from parts

Most medical words are a prefix, a root, and a suffix. Learn about 40 common parts and you can decode hundreds of words you have never seen.

Directional and position terms

These show up on day one and in every report you will ever give.

• Anatomical position: standing, facing you, palms forward. Left and right are always the patient's left and right.
• Anterior / posterior: front / back. Superior / inferior: toward the head / toward the feet.
• Medial / lateral: toward the midline / away from it. Proximal / distal: closer to / farther from the trunk (on a limb).
• Superficial / deep, bilateral / unilateral.
• Supine (face up), prone (face down), lateral recumbent / recovery position (on the side), Fowler's (sitting up).

Body systems to get comfortable with

You do not need a college A&P course to start EMT school (unless your program requires it). You do need a working picture of how these systems keep someone alive:

• Respiratory: airway path from nose and mouth to the alveoli; how oxygen gets in and carbon dioxide gets out. Airway problems kill fastest.
• Cardiovascular: the four chambers, the path of blood through the heart and lungs, arteries vs veins, and what perfusion means. Shock is inadequate perfusion.
• Nervous: brain, spinal cord, and nerves; why level of consciousness is one of your best vital signs.
• Musculoskeletal: major bones (femur, pelvis, humerus, ribs, vertebrae) and why some fractures can cause major bleeding.
• Endocrine: enough to understand diabetes and blood sugar emergencies.
• Integumentary (skin): skin color, temperature, and condition tell you a lot about perfusion.
• Digestive, urinary, and reproductive: abdominal quadrants and what lives in each, and basic OB anatomy for childbirth calls.

Vital signs: know the normal adult ranges

Learn what "normal" looks like before you learn what "sick" looks like. Typical adult resting ranges taught in EMT courses are roughly: heart rate 60 to 100, respiratory rate 12 to 20, and pulse oximetry around 94% or higher on room air in a healthy adult. Blood pressure targets and pediatric ranges are more detailed, so use your textbook's tables. Children have faster normal heart and breathing rates, and the younger the child, the faster.

How to practice

• Play 10 minutes of the vocabulary match game a day. Short daily reps beat a weekend cram.
• Use the flashcards and the anatomy page on this site.
• Say terms out loud and use them in a sentence: "The patient is diaphoretic and tachycardic."
• Draw it. Sketch the airway or the heart from memory, then check it.

This guide is general education written by Forrest Munden, a 21-year firefighter/paramedic and EMS educator. It is not medical advice and it does not replace your program, your state EMS office, your medical director, or your local protocols. Program requirements vary. Always confirm details with your own school and with the National Registry (nremt.org).