. Chordate anatomy. Chordata; Anatomy, Comparative. 172 CHORDATE ANATOMY connexion between the ear-drum and the inner sensory ear, the columella or stapes. The hyoid cartilage forms the basis of attachment of the tongue muscles. With the disappearance of the gills as functional organs in land amphibians, the remaining visceral cartilages become further reduced and associated with the larynx. Some advance towards the mammaUan visceral skeleton appears in living reptiles. The teeth both in upper and lower jaws become lodged in alveolar sockets in two membrane bones, the premaxillary and maxillar
. Chordate anatomy. Chordata; Anatomy, Comparative. 172 CHORDATE ANATOMY connexion between the ear-drum and the inner sensory ear, the columella or stapes. The hyoid cartilage forms the basis of attachment of the tongue muscles. With the disappearance of the gills as functional organs in land amphibians, the remaining visceral cartilages become further reduced and associated with the larynx. Some advance towards the mammaUan visceral skeleton appears in living reptiles. The teeth both in upper and lower jaws become lodged in alveolar sockets in two membrane bones, the premaxillary and maxillary of the upper jaw and the dentary or mandibular of the lower. These. - SURANGULAR_. ARTICULAR 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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