. Elements of human physiology. Physiology. 364 PHYSIOLOGY opening of the larynx is closed by the approximation of the arytenoid cartilages to the l)ase of the tongue and the epi- glottis. Then by the contraction of stylo-pharyngei and palato-pharyngei the upper part of the pharynx is drawn like a glove on a finger over the bolus of food, which is grasped by Fm. Dissection to show muscles employed in^deglutition. b, styloid process, from which arise 1, the styloglossus, 2, the stylohyoid, 3, the stylo-pharyngeus muscles ; c, section of lower jaw ; d, hyoid bone; e, thyroid cartilage; g,
. Elements of human physiology. Physiology. 364 PHYSIOLOGY opening of the larynx is closed by the approximation of the arytenoid cartilages to the l)ase of the tongue and the epi- glottis. Then by the contraction of stylo-pharyngei and palato-pharyngei the upper part of the pharynx is drawn like a glove on a finger over the bolus of food, which is grasped by Fm. Dissection to show muscles employed in^deglutition. b, styloid process, from which arise 1, the styloglossus, 2, the stylohyoid, 3, the stylo-pharyngeus muscles ; c, section of lower jaw ; d, hyoid bone; e, thyroid cartilage; g, isthmus of thyroid gland ; 4, cut edge of mylohyoid muscle ; 5, 6, 7, 8, muscles of tongue ; 9, 10, 11, supei'ior, middle, and inferior constrictors of pharynx ; 12, oeso- phagus. (Allen Thomson.) the superior constrictor, and passed on from this to the middle and inferior constrictors of the pharynx. The third or oesophageal stage is slow and entirely involuntary. The bolus is forced down the oesophagus by a peristaltic wave of contraction passing down the muscular walls of this viscus. The propagation of this contraction from one segment of. 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 Starling, Ernest Henry, 1866-1927. Chicago : W. T. Keener
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiology, bookyear1
