SEER Training Modules
11/27/12 - The NCI is working on updating materials.

Answer:

D. Bronchogenic

This term is composed of the root bronch(o) (any large air passage of lungs) and the suffix - genic (forming). Notice that when two word elements are combined, letters may be added or dropped so as to make the term easier to pronounce, as in this example where a combining vowel of "o" is added to the root "bronch."

In other instances, if the root word ends in a vowel, change that vowel to an "o" or simply add the combining vowel "o."

• anesthesia + logy(study of) = anestresiology
• hema(blood) + globin(protein of) = hemoglobin
• card(heart) + gram(written or recorded) = cardiogram

The vowels a, e, i, u and y may also be used as combining vowels. As examples:

• brach(y)(short) + cardi(heart) + a = brachycardia
• oste(o)(bone) + arthr(Joint) + itis(inflammation of) = osteoarthritis