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.
The constant state of the internal environment is known as homeostasis. The processes the body goes through to achieve homeostasis are called homeostatic mechanisms. On a cold day, the decrease in body temperature is picked up by thermo receptors in the hypothalamus and peripheral thermo receptors in the brain.