Which condition is characterized by the swelling of tissues?

• A. Ptyalism
• B. Edema
• C. Pneumothorax
• D. Asphyxia

Answer: (B)

The condition characterized by the swelling of tissues is edema. Edema refers specifically to the accumulation of excess fluid in the interstitial spaces and cavities of the body, leading to visible swelling. This condition can occur due to various factors, including inflammation, heart failure, kidney disease, or certain medications.

Ptyalism refers to excessive salivation, which does not involve tissue swelling. Pneumothorax is the presence of air in the pleural space, causing lung collapse, and asphyxia involves the absence of oxygen reaching the tissues, which also isn't related to tissue swelling. Thus, edema clearly stands out as the appropriate condition associated with tissue swelling.