Using 'Membrane' in Sentences: Examples for Biology and Medicine

Example 1 (Cell Biology): "The cell membrane is a selectively permeable phospholipid bilayer that regulates molecular traffic into and out of the cell."

Example 2 (Mucosal Immunology): "The mucous membranes lining the respiratory and gastrointestinal tracts serve as the body's first line of defense against inhaled and ingested pathogens."

Example 3 (Clinical): "Premature rupture of membranes before 37 weeks increases infection risk for both mother and fetus."