Counter current flow - Respiration

Each filament has an upper and a lower row of flat lamellae. The lamellae of successive filaments are in close contact. Gas exchange takes place in these lamellae as water flows between them in one direction and blood within them in the other direction. This we call a counter current flow. This type of flow has an important consequence. It permits the fish gills to have the highest possible oxygen levels.

Figure: Counter current flow

Posted Date: 1/15/2013 6:54:39 AM | Location : United States

Ask an Expert

Related Discussions:- Counter current flow, Assignment Help, Ask Question on Counter current flow, Get Answer, Expert's Help, Counter current flow Discussions

Write discussion on Counter current flow
Your posts are moderated

Write your message here..

Related Questions

Food spoilage bacteria - lactobacillus, Food Spoilage Bacteria - Lactobacil... Food Spoilage Bacteria - Lactobacillus Different organisms of this group, also known as "lactic acid bacteria", have different properties but all of them produce lactic acid fro

Blastulation, BLASTUL A TIO N - Type of blastula is blastocyst or... BLASTUL A TIO N - Type of blastula is blastocyst or trophoblastula. Outer layer of cell becomes flat and form trophoblast or trophoectoderm which receives nutritive ma

What causes the signs, In the case story, Reggie presented with three typic... In the case story, Reggie presented with three typical signs of hip fracture-shortening, adduction, and the lateral rotation of the affected limb. What causes these signs? (HINT-th

Systolic dysfunction onset of symptoms, Q. Systolic dysfunction onset of sy... Q. Systolic dysfunction onset of symptoms? In asymptomatic patients with normal LV function, the rate of progression to symptoms and/or LV Systolic dysfunction is about 4 per c

What is vision, What is vision? Why is vision important for life on earth? ... What is vision? Why is vision important for life on earth? Vision is the ability of some living beings to perceive, to differentiate and to interpret luminous stimuli. Visio

Platelet, What happens if platelets aren''t present in blood? What happens if platelets aren''t present in blood?

Explain the periodontal consideration, Explain the Periodontal consideratio... Explain the Periodontal consideration Periodontal consideration would include: Hard Calculus Build up:   Any index assessing the amount of calculus build up can be used .

Explain future challenges of connecting models and data, Explain Future cha... Explain Future challenges of connecting models and data? Since biological systems are complex, models of biological systems are also complex, and matching models and data is a

Describe class agnatha in details, Describe Class Agnatha in details? C... Describe Class Agnatha in details? Class Agnatha takes its name from the Greek word "gnathos," which means jaw, and "a," which is the prefix for "without." These jawless fishes

Define factors that lead to vitamin k deficiency, Define Factors that Lead ... Define Factors that Lead to Vitamin K Deficiency? The factors that lead to vitamin K deficiency include: 1) Marginal dietary intake if one undergoes trauma and extensive sur