Henry Gray (1825–1861). Anatomy of the Human Body. 1918.
pages 1301
| of the incus. A narrow triangular patch extending downward and forward from the umbo reflects the light more brightly than any other part, and is usually described as the cone of light. |
 |
FIG. 1208– The right tympanic membrane as seen through a speculum. (See enlarged image) |
 |
FIG. 1209– Left temporal bone showing surface markings for the tympanic antrum (red), transverse sinus (blue), and facial nerve (yellow). (See enlarged image) |
Tympanic Antrum.—The site of the tympanic antrum is indicated by the suprameatal triangle (Fig. 1209). This triangle is bounded above by the posterior root of the zygomatic arch; behind by a vertical line from the posterior border of the external acoustic meatus; in front and below by the upper margin of the meatus. |
The Neck (Fig. 1210).—Larynx and Trachea.—In the receding angle below the chin, the hyoid bone (page 1288), situated opposite the fourth cervical vertebra, can easily be made out. A finger’s breadth below it is the laryngeal prominence of the |