Which body region does asphyxia/suffocation specifically relate to in the ISS?

Asphyxia, also known as suffocation, is a condition that occurs when the body is deprived of oxygen, which can lead to unconsciousness or death. This condition is primarily associated with the head region because the head houses vital components for breathing and consciousness, including the airway and brain. The airway connects the lungs to the external environment, and any obstruction or impairment in this region can drastically reduce oxygen intake.

The brain is particularly sensitive to low oxygen levels; it requires a continuous supply of oxygen to function properly. If the airways are blocked, whether by choking, injury, or other means, it directly impacts the head and brain, leading to asphyxia. Therefore, understanding asphyxia in the context of the human body highlights its connection to the head region, specifically concerning the airway and its role in respiration and brain health.