. Text book of zoology. Zoology. 400 Vertehrata. bar; tlie efferent branchials unite to form the aorta. In urodelan larvae a single arterial arcli runs to the last branchial bar^ which is destitute of gills; the pulmonary artery arises from this, or, in the larval Anura, from the last efferent branchial artery; the carotids, vessels to the head, spring from the first efferent branchial artery. At the metamorphosis the gill vessels degenerate, and the afferent .and efferent branchial arteries unite* to form simple arterial arches, which, like their precursors, the efferent branchial arteries, e
. Text book of zoology. Zoology. 400 Vertehrata. bar; tlie efferent branchials unite to form the aorta. In urodelan larvae a single arterial arcli runs to the last branchial bar^ which is destitute of gills; the pulmonary artery arises from this, or, in the larval Anura, from the last efferent branchial artery; the carotids, vessels to the head, spring from the first efferent branchial artery. At the metamorphosis the gill vessels degenerate, and the afferent .and efferent branchial arteries unite* to form simple arterial arches, which, like their precursors, the efferent branchial arteries, ea ca. 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 Boas, J. E. V. (Johan Erik Vesti), 1855-1935; Boas, J. E. V. (Johan Erik Vesti), 1855-1935. Lehrbuch der Zoologie. London, Sampson Low, Marston
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1896
