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Why Is a Second Messenger Necessary for a Nonsteroid Hormone

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Short Answer

Why is a second messenger necessary for a nonsteroid hormone but not for a steroid hormone?


Definitions:

Ego

In psychology, a component of Sigmund Freud's theory of personality, the ego operates based on the reality principle, balancing the desires of the id and the moral constraints of the superego.

Id

A component of the psyche in psychoanalytic theory that is responsible for instinctual drives and demands immediate satisfaction.

Libido

A term used to describe sexual drive or desire, often discussed in psychoanalytic theories.

Heinz Kohut

A psychoanalyst known for his development of self psychology, which emphasizes the importance of empathetic relationships in the formation of the self.

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