February 7th 2023
Our A-Level Biologists rose to the challenge of dissecting fish heads this week. They looked at the lower jaw and discovered how the fish is limited by a hinge mechanism, opening and closing to take in water and prey.
The girls used fine forceps to show the action of the operculum (or ‘gill cover’) during ventilation. The operculum moves back and forth to enable the flow of water over the gill arch and filaments.
