. Human physiology. Fig. 155.—Magnified View of the lower portion of a Hair Follicle. ut hair, showing medullary and cortical portions ; b and c, outer and inner layers of theepidermic lining of the follicle; d, the dermis of the hair follicle. Hairs are also provided with muscles. These are composedof involuntary fibres, and pass from the side towards which the. Fig. 156.—Section of the Skin, showing the Hair Follicles, Sebaceons Glands, and the Muscles of the Hairs. a, epidermis ; 6, dermis ; c, muscles of the hair follicles ; d, sebaceous glands. hair slopes obliquely to the outer layer of
. Human physiology. Fig. 155.—Magnified View of the lower portion of a Hair Follicle. ut hair, showing medullary and cortical portions ; b and c, outer and inner layers of theepidermic lining of the follicle; d, the dermis of the hair follicle. Hairs are also provided with muscles. These are composedof involuntary fibres, and pass from the side towards which the. Fig. 156.—Section of the Skin, showing the Hair Follicles, Sebaceons Glands, and the Muscles of the Hairs. a, epidermis ; 6, dermis ; c, muscles of the hair follicles ; d, sebaceous glands. hair slopes obliquely to the outer layer of the dermis. It isevident, therefore, that when they contract they tend to make thehair more erect. i68 ELEMENTARY PHYSIOLOGY SKIN Epidermis Bete Mucosum Dermis Glands Nails PERSPIRA-TION Hairs Composition Quantity \ Uses SUMMARY. {Composed offlattened and to blood-vessels, and but few continually removed by Softer and less transparent.\ Contains pigment cells.*? Gives colour to the of connective and elastic blood-vessels and up into in deeper pprtion. /Situated deep in the of coiled by capillary net-works. i Sweat , Nearly straight< through dermis. Ducts . \Tvl}sted. i
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