[hyper- + -emia]

1. An unusual amount of blood in a part; congestion.
2. A form of macula in which red areas on the skin disappear on pressure.
3. In physical therapy, an increase in the quantity of blood flowing through any part of the body, shown by redness of the skin caused by the application of heat.

active hyperemia

Hyperemia caused by increased blood inflow.
SYN: SEE: arterial hyperemia

arterial hyperemia

SEE: Active hyperemia.

artificial hyperemia

Bringing of blood to the superficial tissues by means of counterirritation, as by coining, cupping, or acupuncture.

Bier hyperemia

SEE: Bier, August Karl Gustav

constriction hyperemia

SEE: Bier hyperemia.

leptomeningeal hyperemia

Pia-arachnoid congestion.

passive hyperemia

Hyperemia caused by decreased drainage of blood.
SYN: SEE: venous hyperemia

reactive hyperemia

The increased flow of blood into an ischemic tissue area after restoration of blood flow.

venous hyperemia

SEE: Passive hyperemia.

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