What is the primary purpose of the vascular changes in an invaded or injured area?
A)They produce swelling, redness, heat, and pain.
B)They bring to the affected area phagocytes and plasma proteins that defend against the offending agent.
C) They produce pus.
D) They exert an anti-inflammatory effect to protect against damage by potentially overreactive defence mechanisms.

Question

Quizplus · Accepted Answer

The primary purpose of vascular changes in an invaded or injured area is to bring phagocytes and plasma proteins that defend against the offending agent. This process, known as inflammation, also produces swelling, redness, heat, and pain. The purpose of these symptoms is to attract additional immune cells to the affected area and to prevent further damage. However, the primary purpose is to bring in the necessary immune cells to fight off the offending agent. Option A is partly correct, but it is not the primary purpose. Option C is incorrect, as pus is a result of the inflammatory response, not the purpose. Option D is also incorrect, as the inflammatory response is an active process that aims to eliminate the offending agent, not to prevent potential damage from defence mechanisms.

What Is the Primary Purpose of the Vascular Changes in an Invaded