Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . ion of thisnerve is seen in the left eye in figure 1. I, Artery of the eye. c, The elevator muscle ofthe upper eyelid, d, The superior rectus, or elevator of the eye. e, The inferior rectus,or depressor of the eye. /, The internal rectus, g, The external rectus. h, figure 1, Thesuperior oblique muscle, m, Its pulley, i, figifft 3, Tho inferior oblique muscle. In figure1, parts of several of these muscle
Class-book of physiology : for the use of schools and families : comprising the structure and functions of the organs of man, illustrated by comparative reference to those of inferior animals . ion of thisnerve is seen in the left eye in figure 1. I, Artery of the eye. c, The elevator muscle ofthe upper eyelid, d, The superior rectus, or elevator of the eye. e, The inferior rectus,or depressor of the eye. /, The internal rectus, g, The external rectus. h, figure 1, Thesuperior oblique muscle, m, Its pulley, i, figifft 3, Tho inferior oblique muscle. In figure1, parts of several of these muscles are removed, in order to display the others distinctly. Figure 2. The Lachrymal Apparatus .—a, The lachrymal gland, b, b, The lachry-mal ducts, which collect the tears, and transmit them to the lachrymal sac, c, whence theypass into the cavity of the nose. Figure 3. The Right Eye, with its Muscles, displayed in the cavity of the orbit, on the vertical plane of a section corresponding to the middle of the arch of the eyebrow :—that is, as if the right side of the head were removed, as far as the middle of tlw right ojro-brow, leaving the eye in its place, to be seen from the THE SENSES. 181 commence in a small opening in the edge of each lid, nearthe corner of the eye, and unite to form the lachrymal sacthat lies upon the side of the upper parts of the nose,From the lachrymal sac a canal passes down to the interiorof the nose, where the tears pass off in vapor with the breath, 376: The Avails of the eye are composed of three coats:the sclerotic, the cornea, and the choroid coat Its interior isoccupied by three humors: the aqueous, the crystalline,and the vitreous. 377. The sclerotic, {fig. 55,) so named from its firmnessand density, constitutes about four-fifths of the globe ofthe eye. It is a tough fibrous structure, admirably adaptedto protect and support this delicate organ.
Size: 1189px × 2101px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectphysiologicalprocess
