Describe the rules for writing medical terms
When combining a root word and a suffix, a combining vowel must be added. This is usually an “o”. If the suffix starts with a vowel, the “o” is usually not added when combining to root words, the combining vowel is maintained, even if the second root begins with a vowel.
Extra
Outside
Contra
Against, opposed
Retro
Posterior, behind
Intra
Within
Cortico
Cortex
Peri
Around, about
Iso
Same, normal
Myel
Marrow, spinal cord
Dys
Abnormal
Auto
Self
Allo
Another (human)
Trans
Across, through
Neur
Nerve
Hema
Blood
Lumb
Lumbar
Os
Bone
Thorac
Chest
Sponsyl
Vertebra
Pneumon
Air, lung
Derma
Skin
Chondr
Cartilage
Sacr
Sacrum
Arthr
Joint