Hyperemia
Hyperemia
Hyperemia (pronounced: hi-per-ee-mee-uh) is a medical term that refers to an increase in blood flow to different tissues in the body. The term is derived from the Greek words "hyper," meaning over or above, and "haima," meaning blood.
Causes
Hyperemia can be caused by a variety of factors, including exercise, inflammation, and certain diseases. It can also be a response to injury, as the body increases blood flow to the affected area to aid in healing.
Types
There are two main types of hyperemia: active and passive.
- Active hyperemia (also known as arterial or functional hyperemia) occurs when there is an increased demand for blood, such as during exercise or digestion. This is a normal physiological response and is generally not harmful.
- Passive hyperemia (also known as venous or congestive hyperemia) occurs when there is a blockage or restriction in the blood flow, causing blood to accumulate in a particular area. This can be caused by conditions such as heart failure or venous thrombosis.
Symptoms
The symptoms of hyperemia can vary depending on the cause and location of the increased blood flow. Common symptoms can include redness, warmth, and swelling in the affected area. In some cases, hyperemia can also cause pain or discomfort.
Treatment
Treatment for hyperemia typically involves addressing the underlying cause of the increased blood flow. This can include medications to reduce inflammation, procedures to remove blockages, or lifestyle changes such as diet and exercise.
See also
References
External links
- Medical encyclopedia article on Hyperemia
- Wikipedia's article - Hyperemia
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