Understanding Joint Cracking

Which type of joint allows for rotational movement, like in the shoulder?

• Hinge joint

• Saddle joint

• Ball-and-socket joint

• Gliding joint

Which joint type is found in the wrist and allows bones to slide against each other?

• Gliding joint

• Pivot joint

• Ball-and-socket joint

• Hinge joint

What causes the cracking sound in joints?

• Air bubbles popping in joint fluid

• Bones rubbing together

• Ligaments stretching

• Muscles contracting

Why can't you crack the same joint repeatedly in a short time?

• The ligaments need to stretch

• The muscles need to relax

• The bones need to realign

• The joint needs to refill with gas bubbles

Is it harmful to crack your joints occasionally?

• No, but it weakens the muscles

• Yes, it damages the bones

• No, it is generally safe

• Yes, it causes arthritis