Which term denotes the bone marrow combining form?

• A. Syndrome
• B. Edema
• C. Myel/o
• D. Diagnosis

Answer: (C)

Combining forms are roots plus a connecting vowel used to build medical terms. For bone marrow, the combining form is myel/o, coming from a word meaning marrow. It’s the part you attach to suffixes to talk about bone marrow, as in terms like myeloma or myelodysplasia. The other options are full terms that describe conditions or signs themselves (syndrome, edema, diagnosis) and aren’t the building block used to denote bone marrow.