What term describes a localized response to tissue injury?

What term describes a localized response to tissue injury?

• A. Discharge
• B. Inflammation
• C. Osteoporosis
• D. Lower Limb

Answer: (B)

Inflammation is the localized response to tissue injury. When tissue is damaged, the area experiences increased blood flow and more permeable vessels, bringing immune cells to the site. This produces the classic local signs—redness, warmth, swelling, and pain—and often some loss of function. The purpose is to contain the injury, destroy or remove harmful agents, clear out damaged cells, and begin healing. Mediators like histamine and prostaglandins drive these changes, and white blood cells migrate to phagocytose debris and pathogens. Inflammation can be acute or chronic, depending on duration and the ongoing stimulus. The other terms don’t describe a tissue-wide protective response: discharge is just drainage from a wound, osteoporosis is a bone-density condition, and a lower limb is an anatomical region.

Inflammation is the localized response to tissue injury. When tissue is damaged, the area experiences increased blood flow and more permeable vessels, bringing immune cells to the site. This produces the classic local signs—redness, warmth, swelling, and pain—and often some loss of function. The purpose is to contain the injury, destroy or remove harmful agents, clear out damaged cells, and begin healing. Mediators like histamine and prostaglandins drive these changes, and white blood cells migrate to phagocytose debris and pathogens. Inflammation can be acute or chronic, depending on duration and the ongoing stimulus. The other terms don’t describe a tissue-wide protective response: discharge is just drainage from a wound, osteoporosis is a bone-density condition, and a lower limb is an anatomical region.