Elements of human physiology / by L. Hermann ; translated from the sixth edition by Arthur Gamgee.

  • Gamgee Arthur, 1841-1909.
Date:
1878
Catalogue details

Licence: Public Domain Mark

Credit: Elements of human physiology / by L. Hermann ; translated from the sixth edition by Arthur Gamgee. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    PAET III. THE LIBERATING APPARATUS. THE NERVOUS SYSTEM. CHAPTER IX, PAGE The conducting apparatus—nerves 332 A. General physiology of nerves • 332 Structure, 332; chemical constituents of nerves, 333 ; various con- ditions under which nerves exist, 333; nerve in a state of rest, 333 ; the process of death in nerve, 334; nerve in a state of activity, 334; excitability, 334; stimuli, 336; ]Dhenomena of the active condition. 341 ; transmission of the state of activity along nerve fibres (conduction), 342; rapidity of conduction, 344; electrical phenomena of nerves, 346 ; theories concerning the nature of nervous activity, 350; the function and classification of nerve fibres, 351 B. Special physiology of nerves 353 I. Spinal nerves ....... . 354 II. Cranial nerves . . . . 366 in. Sympathetic nerves 373 CHAPTER X. The peripheral end-organs of nerves 374 I. The organ of sight 374 Schema of the eye, 374; formation of the image, 377; the action of lenses, 385 ; on the images formed on the retina when the eye is passive, 387; accommodation, 388 ; iris and pupil, 393; imper- fections of the retinal image, 396 ; on the behaviour of light which penetrates the eye, 397 Vision 399 Excitation of the retina, 399 ; quality of luminous impres- sions, 401; images, 408 ; optical instruments, 410 ; subjective images and optical illusions, 412; entoptical perceptions, 415 Movements of the eye 415 The muscles of the eye, 419 Binocular vision 421 Simple vision, 421 ; situation of corresponding points—horop- ter, 421 ; rivalry of the fields of vision ; nature of identity, 427; double images, 424; co-operation of the two eyes in vision, 429 ; stereoscopic vision—stereoscope, 429 ; estimation of magnitude and distance of objects, 433 The organs which protect the eye 436