Answer :
Final answer:
Joseph Black's discovery of 'fixed air,' now known as carbon dioxide, in 1750 was a landmark moment for pulmonary physiology.
Explanation:
In 1750, it was the Scottish physician and chemist Joseph Black who made a pivotal discovery related to pulmonary physiology. Black identified the existence of carbon dioxide, which he referred to as "fixed air". His experiments demonstrated that this gas was distinct from the air and was produced during respiration and combustion. This crucial discovery was fundamental in understanding the role of gases in respiration and laid the groundwork for future studies in pulmonary physiology.
While not directly stated in the provided reference material, the contribution of Joseph Black to physiology is significant and often noted in the annals of medical history. His work on gases, including the identification of carbon dioxide, was influential in the later work of scientists like Joseph Priestley and Antoine Lavoisier in developing a more complete understanding of the chemical nature of respiration.To mention the correct option in the final answer in a span of 20 words, Joseph Black discovered 'fixed air', now known as carbon dioxide, which advanced the understanding of pulmonary physiology.