Ground-Glass Nodules: If Growing, Assume Cancer. Blair Westerly, MD. The more CT scans that are performed, the more ground-glass opacities (GGOâs) are seen and what to do with these abnormalities can be difficult to ascertain for clinicians.
the process of reversing the charge across a cell membrane (usually a NEURON), so causing an ACTION POTENTIAL. In depolarization, the inside of the membrane, which is normally negatively charged, becomes positive and the outside negative.
Side note: mechanisms that cause a cell's membrane potential to become depolarized (less negative/more positive) on the inside is due to chemicals, drugs, neurotransmitters, ions, etc. activating sodium/potassium pumps on the outside of the cell membrane to allow sodium into the cell and potassium out.