hyperemia
Excess blood flow
Hyperemia is an excess of blood in a body part, causing redness and warmth.
The condition results from increased blood flow to an area, whether from inflammation, exercise, or other physiological responses.
Medical contexts distinguish active hyperemia (increased arterial flow) from passive hyperemia (impaired venous drainage): The skin showed hyperemia around the wound site.
Same suit, five cards
- blushFacial reddening from emotion
- ruddinessReddish skin tone
- rosinessPinkish, healthy hue
- erythemaCutaneous vascular flushing
crimson · scarlet · ruddy · pinkness · suffusion · coloration · florid · sanguine
Relaxation of vessel walls
- congestionExcessive accumulation causing blockage
- blood flowMovement through vessels
- perfusionFluid delivery to tissue
- circulationMovement through a system
engorgement · immune response · prostaglandins · cytokines · edema · arterioles · capillaries · venules
Pathological tissue puffiness
- engorgementOverfilling causing swelling
- distensionEnlargement from pressure
- puffinessMild tissue swelling
- tumescenceState of being swollen
flush
Same suit, five cards
erythema · crimson · scarlet · ruddy · pinkness · suffusion · coloration · florid · sanguine · flushed
vasodilation
Relaxation of vessel walls
- congestionExcessive accumulation causing blockage
- blood flowMovement through vessels
- perfusionFluid delivery to tissue
circulation · engorgement · immune response · prostaglandins · cytokines · edema · arterioles · capillaries · venules · chemotaxis
edema
Pathological tissue puffiness
- engorgementOverfilling causing swelling
- distensionEnlargement from pressure
- puffinessMild tissue swelling
warmth
Heat you feel
hyperemiaischemia
Insufficient tissue blood supply
hypoperfusion · vasoconstriction · hypoxia · infarction · necrosis