Glossary E

Epidural hematoma represents a bleed between the meninges and the skull and occurs in 1% to 3% of major closed head injuries. The cause of an Epidural is most usually related to the rupture of an artery.

Epidural space refers to the space between the two (2) dural layers of the meninges.

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Epigamic means of or relating to a trait or behavior that attracts a mate.

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Epigenesis is defined as the emergence of new structures and functions during the course of development.

Epigenetic principle refers to a biological plan for growth such that each function emerges in a systematic sequence until the fully functioning organism has developed. In Erikson’s theory, it is the idea that each psychosocial strength has its own special period of particular importance, the the notion that development is guided by an underlying plan in which certain issues have their own particular times of importance. (See Erikson's Psychosocial theory)

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- Epigenetic principle of maturation : Epigenetic principle of maturation refers to the idea that human development is governed by a sequence of stages that depend on genetic or hereditary factors.

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Epigenetics refers to the study of potentially inheritable changes in gene expression that are caused by environmental factors that do not alter a cell"s DNA.

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Epigone refers to a second-rate imitator or follower, especially of an artist or a philosopher.

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