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.
Water control and nitrogen disposal. Homeostasis The urinary system maintains homeostasis in several ways: Removal of urea (nitrogenous waste) from the bloodstream. Control of water and salt balance in the bloodstream. Involved in blood pressure regulation. The kidneys produce two important hormones.