In sharks the pair of gill filaments are separated by: (i) Fleshy septum (ii) Arches (iii) Lamellar membrane (iv) Epithelial cells
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Answer:
fleshy septum is a answer
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Answer:
In sharks the pair of gill filaments are separated by Fleshy septum or branchial septum
Explanation about branchilal septum:
Each cartilaginous curve is given a bunch of branchial muscles that gets independent, instinctive innervation. Hastily, a slim sheet containing dorsal and ventral constrictor muscles runs in the fold of skin that covers every gill cut and structures the gill septum. Most filaments append, dorsally and ventrally, to connective tissues (belt) that sheath the body. A portion of the more deeply strands connect to the gill bar and may run between nearby bars. These slender, wide muscles crush the pharynx shut as a feature of the siphoning activity fundamental for gill relaxing. Dorsal and profound to this layer, a levator muscle runs from the sheathing belt to the pharyngobranchial, and it can hoist the gill curve. In certain sharks, be that as it may, the most back sets of levator muscles, whose filaments run slantingly down and back, may join contiguous levators, become expanded, and append to the pectoral support. This mass is known as the trapezius and advances into the tetrapod muscle of a similar name. Adductor muscles are situated to close the point between the epibranchial and ceratobranchial, and an interarcual muscle carries out a similar role for the point between the pharyngobranchial and epibranchial ligaments.
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