What Is Lamellae in Fish?

In fishes, gill lamellae are used to increase the surface area between the surface area in contact with the environment to maximize gas exchange (both to attain oxygen and to expel carbon dioxide) between the water and the blood. In fish gills there are two types of lamellae, primary and secondary.

What are gill filaments and lamellae?

Gill filaments are the red, fleshy part of the gills; they take oxygen into the blood. Each filament has thousands of fine branches (lamellae) that are exposed to the water. ... Some fish species absorb a large part of their necessary oxygen through the skin, particularly when they're juveniles.

Which gills contain lamellae?

bivalves. … achieved by folding the platelike gill lamellae into plicae. Each lamella comprises vertical rows of filaments upon the outer head of which are complex arrays of cilia that create a flow of water through the gill, form a filtration barrier, and transport retained particles to food grooves in the dorsal…