During the anatomy lecture, the professor pointed to Zinn's membrane to explain how the lens is suspended.

The double lipid bilayer of the nuclear membrane is punctuated by nuclear pores that control the transport of molecules between the nucleus and the cytoplasm.

Reissner's membrane separates the cochlear duct from the vestibular scala and helps maintain the ionic balance of the endolymph necessary for normal hearing.

The plasma membrane controls the movement of ions and molecules into and out of the cell.

Fossil analysis revealed that early amphibians had numerous membrane-bones covering parts of their skulls.

During the dissection, the researcher identified a tiny membrane-bone near the fish's skull, covered by a thin layer of cartilage.

The cytoplasmic membrane controls the passage of ions and molecules into and out of the cell.

The laboratory adopted membrane filtration to remove bacteria from the water sample.

During the eye exam, the ophthalmologist noted thickening of Bruch's membrane beneath the retina.

During the thyroid dissection, the surgeon carefully inspected the thyrohyoid membrane to assess its integrity and attachment to surrounding structures.