What condition is referred to as "decompression sickness"?

Decompression sickness, commonly known as "the bends," occurs when a diver ascends too quickly from depths where they have been subjected to increased pressure. During a dive, nitrogen from the air we breathe dissolves into the body's tissues due to the high pressure. If a diver ascends rapidly, the pressure decreases too quickly for nitrogen to safely exit the body, leading to the formation of nitrogen bubbles in the tissues and bloodstream. This can cause a range of symptoms, including joint pain, dizziness, paralysis, and even life-threatening conditions.

Understanding decompression sickness is crucial for divers, as it highlights the importance of following safe ascent rates and adhering to decompression stops when necessary. Other options listed in the question do not relate to the process of gas exchange and pressure changes that define decompression sickness, making option B the correct and relevant choice for this condition.