D) Discuss the functional role of the swim bladder in Actinopterygii. Include a

Question

D) Discuss the functional role of the swim bladder in Actinopterygii. Include a detailed explanation for how 'gas' within the swim bladder is adjusted as a fish descends and then as it ascends the water column. Be sure to explain where the gas' is sourced from within the body and how it is removed. Include in your answer the following terms: gas gland, neutral buoyancy, ovale, rete mirabile, and constrictor muscles. Finally, briefly describe the analogous organ used by Chondricthyes to achieve buoyancy and how this differs from the swim bladder.

Explanation / Answer

Swim bladder is an organ which increase the neutral byouncy by filling the organ with air. Air enter into the bladder from blood into the bladder through capillaries called rete mirabile and stored into the modified structure called air gland. Amount of air is adjusted by rete mirabile.

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