hyperemia (redirected from leptomeningeal hyperemia)

hyperemia /hy·per·emia/ (-e´me-ah) engorgement; an excess of blood in a part.hypere´mic

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active hyperemia , arterial hyperemia that due to local or general relaxation of arterioles.

exercise hyperemia  vasodilation of the capillaries in muscles in response to the onset of exercise, proportionate to the force of the muscular contractions.

passive hyperemia  that due to obstruction to flow of blood from the area.

reactive hyperemia  that due to increase in blood flow after its temporary interruption.

venous hyperemia  passive h.

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hy·per·e·mi·a (hp-rm-)

n.

An increase in the quantity of blood flow to a body part; engorgement.

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hyper·emic (-mk) adj.

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hyperemia

[hī′pərē′mē·ə]

Etymology: Gk, hyper + haima, blood

an excess of blood in part of the body, caused by increased blood flow, as in the inflammatory response, local relaxation of arterioles, or obstruction of the outflow of blood from an area. Skin overlying a hyperemic area usually becomes reddened and warm. hyperemic, adj.

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hyperemia (hīˈ·p·rēˑ·mē·),

n condition of increased circulatory flow, warmth, and flushed appearance in an area. Massage therapists often create hyperemia to warm and soften tissue in preparation for specific or deeper work.

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hyperemia (hī´prē´mē),

n an increased and excessive amount of blood in a tissue. The hyperemia may be active or passive.

hyperemia, active,

n a type caused by an increased flow of blood to an area by active dilation of both the arterioles and capillaries. It is associated with neurogenic, hormonal, and metabolic function.

hyperemia, passive,

n a type caused by a decreased outflow of blood from an area. It may be generalized, resulting from cardiac, renal, or pulmonary disorders, or it may be localized, as in the oral cavity, and caused by pressure from mechanical or physical obstruction or by pressure from a tumor, denture, filling, or salivary calculus.

hyperemia, pulpal

n a condition in which an injury, infection, or irritant causes the blood vessels around the tooth's pulp to dilate, resulting in painful pressure.

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hyperemia

an excess of blood in a part.

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active hyperemia, arterial hyperemia

that due to local or general relaxation of arterioles.

leptomeningeal hyperemia

congestion of the pia-arachnoid.

passive hyperemia

that due to obstruction to flow of blood from the area.

pulpal hyperemia

hyperemia of the tooth pulp.

reactive hyperemia

that due to increase in blood flow after its temporary interruption.

venous hyperemia

passive hyperemia.

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hyperemia

An excess of blood flow through a particular tissue. Cf Congestion.