What physiological change causes the visible signs of redness and heat during inflammation?
Answer
Dilation of blood vessels, increasing blood flow
Redness and heat are caused by the dilation of blood vessels, which results in more warm blood rushing to the area, thus elevating the localized temperature and color.
#Videos
Inflammation: Immune Response to Tissue Injury or Infection
Related Questions
What is the primary role of inflammation in the body?What action do chemical mediators released by mast cells initiate in the affected tissue?Which elements exit the bloodstream due to increased capillary permeability during inflammation?What physiological change causes the visible signs of redness and heat during inflammation?What protective function does swelling (edema) serve?What is the protective purpose of pain associated with inflammation?How is the duration of beneficial acute inflammation generally characterized?What specialized immune cells reside in the Central Nervous System (CNS) that initiate localized inflammatory responses?Which chemical messengers orchestrate cellular activities and direct traffic during the inflammatory process?What primarily differentiates the transition from protective acute inflammation to harmful chronic inflammation?What is a significant negative consequence of sustained, chronic inflammation?What types of subtle symptoms might indicate the presence of chronic inflammation?