Osteoarthritis Quiz

Osteoarthritis

• Osteoarthritis occurs when the padding between bones, which acts as a cushion, wears out.
• This wearing out can cause joints to ache, feel rigid, and not work as smoothly.
• The main reason for this is the increased rubbing between bones due to the worn-out padding.

Pressure and Units

• The pressure exerted by the weight of the atmosphere is 1 atm at sea level.
• 1 atm is equivalent to 760 mmHg.
• 1 atm is also equivalent to 1.01 x 10^5 Pa.