INDEX 



51; of face, 56; hygiene of, 66; 



peculiarities of, 64; of skull, 56; 



of thorax, 59. 

 Skin, 5, 474; glands, 479; hygiene of, 



481; localizing power of, 179; 



papillae of, 476. 

 Skull, 56. 

 Sleep, 343. 

 Small intestine, 407 ; absorption from, 



442; movements of, 429. 

 Smell, 202; fatigue of, 203; keenness 



of, 203. 

 Smooth muscle, 83; physiology of, 



100. 



Sneezing, 368. 

 Soap, production of, from fat, 14; in 



intestine, 450. 

 Sodium chlorid, 15. 

 Solar plexus, 133, 338, 406, 411. 

 Solidity, perception of, 252. 

 Sound, 193; loudness of, 193. 

 Sounds of heart, 307. 

 Source of animal heat, 485. 

 Source of body fat, 460. 

 Source of glycogen, 443. 

 Source of muscular energy, 99. 

 Source of urea, 463. 

 Special senses, 170. 

 Specific gravity of blood, 261. 

 Specific nerve energies, 169. 

 Spectacles, 229. 

 Speech, 491. 

 Spermatid, 509. 

 Spermatozoa, 509. 

 Sphenoid bone, 56. 

 Spherical aberration, 227. 

 Spinal accessory nerve, 131. 

 Spinal column, see Vertebral column. 

 Spinal cord, 121; central canal of, 



124; columns of, 123; fissures of, 



122; functions of, 140, 144; gray 



matter of, 122; membranes of, 119; 



white matter of, 123. 

 Spinal ganglia, 126. 

 Spinal nerve-roots, 126. 

 Spinal nerves, 119, 126; distribution 



of, 127. 



Spindle, nuclear, 21. 

 Sphincter muscles, 101. 

 Sphincter of pylorus, 407. 

 Splanchnic nerves, 338, 411. 

 Splanchnic region, 338. 

 Splenic artery, 416. 

 Spontaneity, 26. 

 Sprains, 72. 

 Squinting, 212. 

 Stages of life, 526. 

 Stapedius muscle, 189. 

 Stapes, 189. 



Starch, animal, 14; digestion of, 418, 

 421, 439; as food, 389. 



Stearin, 14. 



Stenson's duct, 403. 



Stereoscopic vision, 253. 



Sternum, 60. 



Stimulus, 25, 88. 



Stirrup bone, 189. 



Stomach, 405; absorption from, 442; 

 digestion in, 440; histology of, 406; 

 movements of, 427; nervous con- 

 trol of, 430. 



Storage, of carbohydrates, 443; of 

 glycogen in muscles, 444. 



Storage tissues, 33. 



Strabismus (squinting), 212. 



Structure, vertebrate, 3. 



Strychnine poisoning, 139. 



Subclavian artery, 296; vein, 300. 



Subcutaneous areolar tissue, 475. 



Sublingual gland, 403. 



Submaxillary gland, 403. 



Succus entericus, 420; control of, 439. 



Sucrose, 389. 



Sudoriparous glands, 479. 



Sugar, 14, 418; as food, 389; as fuel 

 for muscles, 100. 



Sulcus spiralis, 191. 



Superior maxillary nerve, 130. 



Superior mesenteric artery, 416. 



Superior oblique muscle, 211. 



Superior rectus muscle, 210. 



Supination, 72. 



Supplemental air, 359. 



Supporting tissue, 32. 



Suprarenal capsules, 273. 



Suspensory ligament of eye, 218. 



Sutures, 67. 



Swallowing, 425. 



Sweat, 480. 



Sweat center, 481. 



Sweat-glands, 479. 



Sweat, nervous control of, 480. 



Sweating, relation of to heat loss, 

 486. 



Sweetbread, 415. 



Sylvius, fissure of, 147. 



Sympathetic ganglion, 133. 



Sympathetic resonance, 195. 



Sympathetic system, 119, 133, 164; 

 relation of to emotional states, 167; 

 reflex control of, 166. 



Synapse, 117. 



Synaptic resistance, 138. 



Synovial membrane, 69. 



System, alimentary, 39, 397; circu- 

 latory, 39, 288; conductive, 38, 

 116; excretory, 39, 462; motor, 

 38, 73; nervous, 38, 116; receptor, 



