Respiration; buccal and opercular pumps

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Phase 2: The mouth closes and the buccal cavity contracts, creating positive pressure in the buccal cavity and causing a reduced pressure differential between the two cavities. This phase is of very short duration.
Phase 3: The Buccal Pressure Pump: the buccal cavity is further compressed, while the opercular cavity is being compressed as well, causing water to be pushed out through the opercular opening. Pressure is positive in both cavities, but the pressure differential between the two cavities is maximized.
Page 1 and 2: BIOLOGY OF FISHES FISH/BIOL 311 FUN
Page 3 and 4: The average human can utilize only
Page 5 and 6: Within the pattern, however, can be
Page 7: Diagrammatically, we can express th
Page 11 and 12: The timing of the expansion and con
Page 13 and 14: With sensitive pressure transducers
Page 15 and 16: In other pelagic forms, the pumps m
Page 17 and 18: In truly benthic forms, especially
Page 19 and 20: 3. STRUCTURE AND FUNCTION OF GILLS
Page 21 and 22: In all bony fishes there are muscle
Page 23 and 24: Deoxygenated blood reaches the gill
Page 25 and 26: Three-dimensional cut-away view thr
Page 27 and 28: List of Air-breathing Fishes Arrang
Page 29 and 30: Lateral views of the gill arches of
Page 31 and 32: Gills are never used for air breath
Page 33: What is the biological significance

Respiration; buccal and opercular pumps

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