Medical Terminology Simplified

10–48 A myel/o/gram, a radiograph of the spinal canal after injection of a con-

trast medium, is used to identify and study spinal lesions caused by trauma or disease.

To identify any distortions of the spinal cord, the physician may order a radiograph

called a __________ / _____ / __________.

10–49 Oste/o/myel/itis is an inflammation of the bone and bone marrow, most

commonly due to infection. (See Fig. 10–5.)

Localized or generalized infection of the bone and bone marrow is charted as

__________ / _____ / __________ / __________.

10–50 Oste/o/myel/itis is usually caused by bacteria introduced through trauma

or surgery, by direct extension from a nearby infection, or via the bloodstream.

Staphylococci are the most common causative agents.

Analyze the elements of the term oste/o/myelitis:

oste/o: __________

myel: __________ ____________________; ____________________ __________

-itis: ____________________

Boldfaceindicates a word root or combining form. Blueindicates a suffix. Pinkindicates a prefix.

472 CHAPTER 10• Musculoskeletal System

myel/o/gram

MĪ-ĕl-ō-grăm

oste/o/myel/itis

ŏs-tē-ō-mī-ĕ-LĪ-tĭs

bone

bone marrow, spinal

cord

inflammation

Sequestrum

Pus formation

Impaired blood flow

A B

Figure 10-5Osteomyelitis. (A)Bone infection in the toe. (B)Blocked blood flow in the area
of infection with sequestrum (bone death) and pus formation at the infection site.