hormome interactions

Permissive Effect

One hormone permits another to have its effect

Antagonistic Effect

One hormone Blocks another from having its effect

Synergistic Effect

Two hormones act together for a much greater effect than either alone;Not Additive Is multiplicative (logrythmic)

1st rule of Endocrinology

Target cells determine effects ,hormones are signals to do something, target cell decides what the “something is

2nd rule of Endocrinology

Target cells determine presence/absence of receptors for hormones , target cells decide if/when they get the “signal

Autocrine

Hormone in blood but targets Are/located the cell that made the hormone

Paracrine

Hormone in blood but targets located near by

endocrine

hormone in blood for targets located throughout the body

endocrine definition

Hormone in blood

Exocrine definition

Outside of blood

Endocrine glands

Make hormones that move in blood

Exocrine glands

Make “other” molecules (not hormones nor neurotransmitters) that move in ducts

Pancreas

Only gland that is both exocrine and endocrine

Nervous system

Makes neurotransmitter for quick, short term responses

Nervous system x

Controls endocrine system

Endocrine system

Makes hormones for slow, long term responses

Hormones

Circulate in the blood affecting cells throughout the body, Are signals for cells to do “something” including a wide arrange of physiological regulation/changes