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.
In the human body, the endocrine and nervous systems control homeostasis. The organs and organ systems provide feedback to the brain. The body maintains homeostasis through maintaining temperature, balancing pH, maintaining a balance between electrolytes and water, respiration and maintaining blood pressure.