The answer to the question mentioned above is "Synaptic Cleft".
The region composed of a presynaptic cell, its target cell and the space between them is a Synaptic Cell. This cell exists between the neurons and this is a microscopic gap.
recycling and using alternative power
The Endoplasmic Reticulum or ER is an extensive system of internal membranes that move proteins and other substances through the cell.
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ADH acts on the "principal cells" to regulate facultative water reabsorption. ADH regulates facultative water reabsorption, through increasing the water permeability of the principal cells and reducing the urine produced .
