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6 Cards in this Set

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Autocrine
Secreted by cells in a local area and influences the activity of the same cell type from which it was secreted
Parcrine
Produced by a wide variety of tissues and secreted in to tissue spaces; usually has a localized effect on other tissues
Hormone
Sectred into blood by specialized cells; travels some distance to target tissues; influences specific activities
Neurohormone
Produces by neurons and functions like hormones
Neurtransmitters or neuromodulators
Produced by neurons and secrted into extracellular spaces by presynaptic nerve terminals; travels short distances; influences postsynaptic cells
Pheramone
Secreted into the enviornment; modifies the physiology and behaviors of other individuals