Final answer:
Tissue injury is a pathological category that involves injury caused to living tissue by an outside force. Inflammation is the body's initial response to tissue injury, aiding in repair and regeneration.
Step-by-step explanation:
A pathological category that involves injury caused to living tissue by an outside force is known as tissue injury. Inflammation is the body's initial response to tissue injury, which limits the extent of the injury, eliminates the cause, and initiates repair and regeneration. This process can be acute or chronic, leading to various diseased conditions.
"Tissue injury caused by an outside force" typically falls under the category of "trauma." Trauma refers to physical damage or injury inflicted on living tissues due to external factors, such as accidents, falls, impact, or other forceful events.