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Endocrince System
N/A
7
Anatomy
Undergraduate 1
05/01/2011

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Term
Direct Communication
Definition
Exchange of ions and molecules  between adjacent cells across gap junctions
Term
Paracrine Communication
Definition
The use of chemical messengers to transfer information from cell to cell within a single tissue.
Term
Hormones
Definition
Chemical messengers that are released in one tissue and transported in the bloodstream to alter the activities of specific cells in other tissues.
Term
Target Cells
Definition
Specific cells that possess the receptors needed to bind and "read" the hormonal message when it arrives.
Term
Endocrine Communication
Definition
The activity of hormones in coordinating cellular activities in tissues in distant portions of the body.
Term
Synaptic Communication
Definition

The effects of neural stimulation are generally short-lived, and they tend to be restricted to specific target cells-primarily because the neurotransmitter is rapidly broken down or recycled.

Term
Endocrine System
Definition
All the endocrine cells and tissues of the body that produce hormones or paracrine factors with effects beyond their tissues or orogin.
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