Table of Contents
What is the gill filament?
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.
What is the function of gill filaments?
Gills are tissues that are like short threads, protein structures called filaments. These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.
Where are the gill filaments?
A pair of gill filaments projects from each arch; between the dorsal (upper) and ventral (lower) surfaces of the filaments, there is a series of secondary folds, the lamellae, where the gas exchange takes place.
What are gills explain?
Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries. As the fish opens its mouth, water runs over the gills, and blood in the capillaries picks up oxygen that’s dissolved in the water.
Why is it important for gill filaments to have a large surface area?
the large surface area of the gills. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick. the efficient ventilation of the gills with water – there is a counter current flow of water and blood.
What are gills made out of?
Gills usually consist of thin filaments of tissue, lamellae (plates), branches, or slender, tufted processes that have a highly folded surface to increase surface area. The delicate nature of the gills is possible because the surrounding water provides support.
What is the function of the gill filament?
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. The branches contain blood capillaries beneath a thin epithelium that separates the blood from the water, allowing oxygen and carbon dioxide to pass through easily.
What are the gill filaments of bony fishes called?
The gill filaments of bony fishes are called “primary lamellae.” They are intricate structures that have a large surface area. Smaller secondary lamellae are offshoots of the primary filaments. The secondary lamellae contain small blood capillaries and blood flows in the opposite direction of the water.
Where are the filaments of the gill arches located?
A pair of gill filaments projects from each arch; between the dorsal (upper) and ventral (lower) surfaces of the filaments, there is a series of secondary folds, the lamellae, where the gas exchange takes place. The blood vessels passing through the gill arches branch into the filaments and…
What makes up the gill bar of a fish?
Fish’s gills are made up of a gill bar, gill filaments, gill rakers and gill lamellae. The gill filaments are “stacked” along the the gill bar and the gill lamellae stick out of the filaments at right angles.