hyperemia
Definition
Noun: 1. An increased or excessive amount of blood in an organ or other part of the body: A physiological or pathological condition where there is an engorgement of blood vessels in a specific area, leading to redness and warmth.
Usage
- The term is used primarily in medical and biological contexts to describe a localized condition of increased blood flow.
- It can be a normal, temporary response (e.g., to exercise or blushing) or a sign of inflammation or injury.
Examples
- Medical Context:
- The dentist noted hyperemia of the gums, indicating inflammation.
- Hyperemia is a common sign of an active infection at the wound site.
- The skin showed signs of hyperemia after the burn.
Advanced Usage
- Active Hyperemia: Refers to increased blood flow due to the dilation of arterioles, often in response to increased tissue activity (e.g., in muscles during exercise).
- Passive Hyperemia (Congestion): Refers to increased blood volume due to impaired venous outflow, often a sign of pathology (e.g., heart failure).
Variants and Related Words
- Hyperemic (adjective): Pertaining to or affected by hyperemia.
- The tissue appeared hyperemic and swollen.
Synonyms
- Congestion (specifically for passive hyperemia)
- Engorgement
Antonyms
- Ischemia (deficient blood supply to a body part)
- Pallor (paleness, often from reduced blood flow)
Noun
-
increased blood in an organ or other body part
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