. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. ulaof some kinds of fish, receive a more abundant supply of sen-sitive nerves than other parts of their systems. 626. Where do the nerves of the skin proceed from ? Are they numer-ous in this membrane ? How is it proved ? What is said of those partsmost exposed to injury ? Give example 1st. Example 2d. 627. Mentionthe difference in the distribution of the nerves in various parts of thebody. Is this difference found in the lower vrdiet of animails ? ANATOMY OF THE SKIN. 287 628. In tlie small papill
. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. ulaof some kinds of fish, receive a more abundant supply of sen-sitive nerves than other parts of their systems. 626. Where do the nerves of the skin proceed from ? Are they numer-ous in this membrane ? How is it proved ? What is said of those partsmost exposed to injury ? Give example 1st. Example 2d. 627. Mentionthe difference in the distribution of the nerves in various parts of thebody. Is this difference found in the lower vrdiet of animails ? ANATOMY OF THE SKIN. 287 628. In tlie small papillfe, the nerve forms a single loop,while in papillae of larger size, and endowed with a powerof more exalted sensation, the nerve is bent several timesupon itself previous to completing the loop. These littleloops spring from a net-work of nerves, imbedded in theupper porous layer of the true skin, at the base of the papil-Iva. This net-work of nerves receives its influence throughnerves which take their winding course through the fat dis-tended openings of the deeper layers of the true Fig. 113. 1, 1, The cuticle. 2, 9, The colored layer of the cuticle. 3, 3, TTiepapillary layer, exhibiting the nerves as they form loops. 4, 4, The net-work ofnerves. 5, 5, The true skin. 6, 6, 6, Three nerves tliat divide to form the net-work (4, 4.) 7, 7, 7, The furrows between the papill®. 8, 8, 8, Three papillamagnified fifty diameters. 629. The lymfhatics are found in great numbers in thetrue skin, and^they are so minute that they cannot be seen withthe naked eye ; but when these hair-like vessels are injectedwith quicksilver, (a work of great difficulty,) the surface injected 628. How are the nerves of the small papillae arranged? How in thelarge papillae ? VPaat does fig. 113 represent ? 629. What is said of thecutaneous lymphatics ? Ho-w is their existence proTed ? 288 ANATOMY, PHYSIOLOGY, AND HYGIENE. resembles a sheet of silver. In this way their existence canbe imperfectly demo
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