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Cellular and Molecular Biology

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Striated Duct Cells and Saliva Composition

CELLS-KPZ79F

Striated duct cells of salivary glands are highly active cells. They absorb sodium chloride from saliva and excrete potassium bicarbonate into saliva.

The ion transport is uneven in that striated duct cells absorb much less sodium chloride than they excrete potassium bicarbonate.

Via this uneven ion pumping process, the striated cells would make saliva more

A

hypertonic.

B

hypercalemic.

C

acidic.

D

hypocalcemic.

E

hypotonic.