Sec. 3Diagnosing Bone & Joint Injuries

Read pgs. 20-23

What Do X-ray Images Show?

1. Examine the photos of the X-ray images.

2. Try to identify what part of the human body the X-ray shows.

3. Locate the break in a bone.

• Think It Over• Observing What types of structures

are seen clearly in the X-ray? What types of structures cannot be seen?

Common skeletalsystem injuries

Break in bone

Bone comes

Out of joint

LigamentsStretched

Too far

fracture dislocation sprain

dislocation

X- rays MRI(magnetic resonance

imaging)

Procedure film placed under area to be viewed beam of x-rays emitted pass thru skin & body tissue absorbed in bone

patient placed

in cylinder exposed to magnetic energy

Effect on cells

can cause

damage

causes

no damage

Cost low cost high cost

Injury type bone soft tissue & bone

Identifying Injuries

X-ray

MRI

Magnetic resonance imaging can produce images of muscles and other soft tissues in the body. The image on the right was produced using magnetic

resonance imaging.

Open MRI

MRI brain scan

X-rays/MRIs

[05:39]

Treating injuries• Wear a cast• Surgical procedures: joint

replacement & arthroscopy

arthritis• disease of joints that makes

movement painful

arthroscope• instrument used to

look inside joint to see what’s wrong