Cell membrane
A cell membrane or cytoplasmic membrane was the outer hull of a biological .

In 2153, the research team witnessed by using a microscope how the nanoprobes repaired the cell membranes of a Borg drone. ()

After beaming Lily Sloane aboard the 's sickbay for examination in 2063, Doctor Beverly Crusher told Nurse Alyssa Ogawa that the damage to Sloane's cell membranes had been repaired, but she wanted to run another test on her spinal tissue. ()

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Biology