File:Kirkes' handbook of physiology (1907) (14583323728).jpg

Identifier: kirkeshandbookof00kirk (find matches)
Title: Kirkes' handbook of physiology
Year: 1907 (1900s)
Authors: Kirkes, William Senhouse, 1823-1864 Greene, Charles Wilson, 1866-1947
Subjects: Physiology
Publisher: New York, W. Wood and company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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latter by volatile materials.They are also closely associated in action and we do not always differentiatebetween the two. THE SENSE OF TASTE. The conditions for the perceptions of taste are: i, the presence of a senseorgan, a nerve, and a nerve center with special endowments; 2, the excitationof the sense organ by the sapid matters, which for this purpose must be in astate of solution; 3, a temperature of about 370 to 400 C. (980 to ioo° F.). The Nerves and Organs of Taste. The principal organ of the senseof taste is the tongue. But the soft palate and its arches, the uvula, Umsils, THE NEHYES AND ORGANS OF TASTE 605 and probably the upper part of the pharynx, are also endowed with taste.These parts, together with the base and posterior parts of the tongue, aresupplied with branches of the glosso-pharyngeal nerve, and evidence hasbeen already adduced that this is the principal nerve of the sense of taste.The anterior parts of the tongue, especially the edges and tip, are innervated
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Fig. 422.—Papillar Surface of the Tongue, with the Fauces and Tonsils, i, Circumvallatepapillae, in front of 2, the foramen cecum; 3, fungiform papillae; 4, filiform and conical papillae; 5,transverse and oblique rugae; 6, mucous glands at the base of the tongue and in the fauces; 7,tonsils; 8. part of the epiglottis; 9, median glosso-epiglottidean fold (frenum epiglottidis). (FromSappey.) by fibers from the lingual branch of the fifth, but which arise in the ganglionof the pars intermedia and are distributed in the chorda tympani, figures 387and 388. The mucous membrane in the regions just mentioned possesses specialepithelial structures called taste buds. The taste buds are very abundant 006 TFIK SENSES in the side walls of the circumvallate papilla-. They are also present in thefungiform papillae, in the foliate papillae, and in the mucous membrane.The taste bud is located at the deeper part of the stratified epithelium, isovoid in shape, and its free end. abuts on the surface or

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