. Chordate anatomy. Chordata; Anatomy, Comparative. THE VASCULAR SYSTEM 267 truncus arteriosus, and distributed to the numerous gills by a series of paired afferent vessels, the aortic arches. Contractile enlargements or bulbils of these vessels aid in the propulsion of blood to the gills. Neph-. ridia similar to those of annelids are associated with the gills and pre- sumably assist in the eUmination of nitrogenous wastes. From the efferent vessels the blood passes to the paired dorsal aortae, the anterior extensions of which correspond to the internal carotid arteries of verte- brates. Poste
. Chordate anatomy. Chordata; Anatomy, Comparative. THE VASCULAR SYSTEM 267 truncus arteriosus, and distributed to the numerous gills by a series of paired afferent vessels, the aortic arches. Contractile enlargements or bulbils of these vessels aid in the propulsion of blood to the gills. Neph-. ridia similar to those of annelids are associated with the gills and pre- sumably assist in the eUmination of nitrogenous wastes. From the efferent vessels the blood passes to the paired dorsal aortae, the anterior extensions of which correspond to the internal carotid arteries of verte- brates. Posterior to the gills the paired aortae unite to form the median. 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son & Co.
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Keywords: ., bookcentury1900, bookpublisherphi, booksubjectanatomycomparative
