During the dissection, the student carefully examined the operculars to identify variations among species.

During the dissection, she carefully removed the opercular to examine its surface for signs of disease.

The ichthyologist described the opercular markings that differentiated the two species.

During the embryonic stage, opercularization proceeds rapidly, shaping the fish's gill cover and ensuring proper respiration.

The cingulo-opercular network showed increased activation during the sustained attention task.