Pulmonary hypertension is a rare lung disorder in which the arteries that carry blood from the heart to the lungs become narrowed, making it difficult for blood to flow through the vessels. As a result, the blood pressure in these arteries -- called pulmonary arteries -- rises far above normal levels.
Homeostatic Control Mechanisms Homeostatic Control Mechanisms are devices for maintaining or restoring homeostasis. They involve virtually all of the bodyâs organs and systems.
Some of the internal conditions that  homeostasis control is: carbon dioxide, bod â¦ y temperature and the  body's water content.omeostasis controls everything in our body. It is important in keeping all of our systems in balance. Our systems have a certain normal range and the reason is due to homeostasis.