The hawk's nictitating membranes swept across its eyes to protect them during the dive.

During the dissection, the medical students carefully examined the serous membranes covering the organs to understand their protective functions.

During the experiment, researchers noticed plasma membranes changed their permeability in response to the new drug.

During the lecture, the professor showed diagrams of virginal membranes to explain variations in anatomy.

During the exam, the doctor observed that the patient's mucous membranes were unusually pale, indicating possible anemia.

When she was admitted to the hospital, the obstetrician confirmed a rupture of membranes and prepared for delivery.

During the autopsy, the pathologist carefully documented the condition of the hyaloid membranes.

Inflammation of the synovial membranes can lead to joint pain and stiffness.

Many diseases affect the integrity of nuclear membranes, altering gene expression in affected cells.

During the dissection, Reissner's membranes were carefully examined under the microscope to assess cochlear health.