360 



ANATOMY FOR NURSES [Chap. XVIIJ 



Nails 



Hair 



Sebaceous 

 Glands 



Ceruminous 

 Glands 



Sweat- 

 glands 



Sweat 



Found all over 

 body, except 



[ Consist of clear, horny cells of epidermis. 

 j True skin forms a bed or matrix for nail. 



Root of nail is lodged in a deep fold of the skin. 



Nails grow from soft cells in gerrainative layer at root. 



The hair grows from the roots. 



The roots are bulbs of soft-growing cells contained in the 

 hair follicles. 



Hair follicles are little pits developed in the derma. 



Stems of hair extend beyond the surface of the skin, con- 

 sist of three layers of cells: (1) cuticle. (2) fibrous 

 substance. (3) medulla. 



(Palms of the hands. 

 Soles of the feet. 

 Last phalanges of the fingers and toes. 

 Arrector muscles are attached to true skin and to each hair 

 follicle. 



Saccular glands the ducts of which usually open into a 

 hair follicle, but may discharge separately on the sm- 

 face of the skin. 



Lie between arrector muscles and hairs. 



^ , X- 1 • i- J. f Palms of hands. 



V ound over entire skin surface except ^ ^ i f f + 



Secrete sebum, a fatty, oily substance, which keeps the 

 hair glossy and the skin flexible, and forms a protective 

 layer on surface of skin. 



(Modified sweat-glands. 

 Found in skin of external auditory canal. 

 Secrete cerumen, a yellow, pasty substance, like wax. 



Tubular glands, consist of blind ends coiled in balls, 

 lodged in subcutaneous tissue, and surrounded by a 

 capillary plexus. Secrete sweat and discharge it by 

 means of ducts which open exteriorly. (Pores.) 



Watery, colorless, turbid liquid, salty taste, distinctive 



odor, and acid reaction. 

 Consists of water, salts, fatty acids, urea, and carbon 



dioxide. 

 Average quantity, one quart in twenty-four hours. 

 L Dilute condition of blood. 

 2. Increased temperature or humidity 

 of the atmosphere. 

 Exercise. 

 Pain. 



Mental excitement or nervousness. 

 Dj'spnoea. 

 Use of diaphoretics. 



Amount increased 

 by 



3. 

 4. 

 5. 

 6. 

 17. 



