We've looked at dissection gas exchange systems in humans, now let's look at fish.
Again, you need to make sure you have the correct apparatus and that it's sterilised.
- Tools need to be sharp in order to cut cleanly.
So what steps are required to dissect a fish?
- Lay the fish in front of you.
- the gills are found underneath a bony flap called the operculum
- gills can be found on both sides of the fish
- Remove the gills by carefully pushing back the operculum and cutting them out.
- the gills are supported by structures called 'gill arches'
- they can be cut out by cutting through the bone with scissors.
Gills are made up of folds, called gill filaments.