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.
View Test Prep - biology quiz.docx from ENGLISH 103 at Island Coast High School. homeostasis the relatively constant state in the internal environment of an organism feedback loops self-regulation mechanisms that send information to appropriate physiological systems so that appropriate adjustments can be made negative feedback a control mechanism that inhibits or counteracts an earlier reaction positive feedback a control mechanism that intensifies or enhances an earlier reaction system level a degree of organism complexity; cells arranged into systems Starch and ...