FIGURE 7.1 Three-Dimensional Effects of Posterior Cricoarytenoid Muscle Contraction. (A) Sagittal view. (B) Posterior view. (From Flint PW, Haughey BH, Lund VJ, et al. Cummings Otolaryngology—Head and Neck Surgery. 6th ed. Philadelphia, PA:…
FIGURE 6.1 Cochlear Malformations. Drawings were made from coronal CT scans. (From Jackler RK, Luxford WM, House WF. Congenital malformations of the inner ear: a classification based on embryogenesis. Laryngoscope. 1987;97(suppl 40):2…
!DOCTYPE html> 5 Head and Neck Surgery Principles of Radiation Therapy Types of Radiation • Photon: most common form • Electron: superficial penetration ideal for skin • Neutron: high-energy particle…
Figure 7-1 Surgical spaces of the orbit. A, Axial view. B, Coronal view. (Illustration by Cyndie C. H. Wooley.) the subperiosteal (subperiorbital) surgical space, which is the potential space between…
Figure 15-1 Longitudinal section of normal optic nerve. Axons of the retinal ganglion cells (R) become axonal fibers of the optic nerve. Optic nerve axons pass through the fenestrations in…
Figure 1-1 Rectilinear propagation of light through uniform medium. Here, the speed of light is constant with spherical wavefronts and straight rays. Note that in nonuniform medium, the speed of…
Figure 3-1 Observation system: light path from patient’s pupil, through mirror, to observer’s retina. (Illustration by C. H. Wooley.) Figure 3-2 Illumination system: position of source (S) with plano mirror…
Figure 7-1 A plus lens used to view an object positioned in the focal plane of the lens. O = object; f = focal length. (Redrawn from Basic and Clinical…
Figure 8-1 Sunlight passing through openings between partially overlapping leaves suggests that light moves in straight lines. However, such “rays” would be invisible without light scattering caused by mist in…
Figure 5-1 The major types of intraocular lenses (IOLs) and optics. A, Anterior chamber lens. B, Prepupillary lens (no longer used). C, Posterior chamber lens in the capsular bag. D,…
