esaay on inflammatory process
Answers
INFLAMMATION. The inflammatory response (inflammation) occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause. The damaged cells release chemicals including histamine, bradykinin, and prostaglandins. These chemicals cause blood vessels to leak fluid into the tissues, causing swelling.
The inflammatory response (inflammation) occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause. The damaged cells release chemicals including histamine, bradykinin, and prostaglandins. These chemicals cause blood vessels to leak fluid into the tissues, causing swelling
Clinically, acute inflammation is characterized by 5 cardinal signs: rubor (redness), calor (increased heat), tumor (swelling), dolor (pain), and functio laesa (loss of function) (Figure 3-1). The first four were described by Celsus (ca 30 bc–38 ad); the fifth was a later addition by Virchow in the nineteenth century.
The four cardinal signs of inflammation are redness (Latin rubor), heat (calor), swelling (tumor), and pain (dolor). Redness is caused by the dilation of small blood vessels in the area of injury.
Several things can cause chronic inflammation, including:
untreated causes of acute inflammation, such as an infection or injury.
an autoimmune disorder, which involves your immune system mistakenly attacking healthy tissue.
long-term exposure to irritants, such as industrial chemicals or polluted air.