Question

multiple choice 1 point
when a splinter pierces the skin, the body responds with an inflammatory reaction. a table describing the response to the injury is shown.
injury with a splinter
1 the inflammatory response is triggered when damaged or infected cells release chemical alarm signals.
2 the temperature around the injury increases, preventing bacterial growth.
3 the chemical alarm signals white - blood cells to move to the site of injury. white - blood cells attack pathogens and consume dead and infected cells.
4 the chemical alarm stimulates additional blood flow and fluids to the injury, resulting in swelling.
which set of statements describes how body systems interact after an injury?
the integumentary system alerts the body that the skin has been broken. the immune system sends white - blood cells to attack pathogens that enter the body.
the immune system alerts the integumentary system that the skin has been broken. the muscular system increases the blood flow to the area, which causes swelling.
the nervous system alerts the capillaries to increase the temperature at the side of the injury. the immune system releases water into the injured area to cool the area after the increase in temperature.
the immune system increases the temperature of the area to reduce bacterial growth. the circulatory system increases blood flow to cleanse the injury.
clear my selection

Explanation:

The integumentary system (skin) is the first - line barrier. When it's broken by a splinter, it alerts the body. The immune system then sends white - blood cells to attack pathogens that enter through the broken skin. This is consistent with the first option. The other options have incorrect interactions. For example, the immune system doesn't alert the integumentary system that the skin is broken (it's the other way around), the muscular system doesn't increase blood flow to cause swelling in this context, the nervous system doesn't alert capillaries to increase temperature, and the immune system doesn't release water to cool the area.

Answer:

The integumentary system alerts the body that the skin has been broken. The immune system sends white blood cells to attack pathogens that enter the body.