. Animal physiology. Physiology, Comparative; Physiology, Comparative. Fig. 147 Gills of Fig. 148.—Lamprey. figure (a). But in Fishes with a bony skeleton, there is usually but a single large orifice on either side ; and this is covered with a large valve-like flap, which is termed the operculum or gill-cover. A continual stream of water is made to pass over the gills by the action of the mouth, which takes in a large quantity of fluid, and then forces it through the apertures on each side of the throat, into the gill-cavities; and from these it passes out by the other. Please note tha
. Animal physiology. Physiology, Comparative; Physiology, Comparative. Fig. 147 Gills of Fig. 148.—Lamprey. figure (a). But in Fishes with a bony skeleton, there is usually but a single large orifice on either side ; and this is covered with a large valve-like flap, which is termed the operculum or gill-cover. A continual stream of water is made to pass over the gills by the action of the mouth, which takes in a large quantity of fluid, and then forces it through the apertures on each side of the throat, into the gill-cavities; and from these it passes out by the other. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carpenter, William Benjamin, 1813-1885. London : Wm. S. Orr and Co.
Size: 3699px × 676px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarpenterwilliambenja, bookcentury1800, bookdecade1840
