A handbook of surface antomy and landmarks / by Bertram C.A. Windle.

  • Windle, Bertram C. A. (Bertram Coghill Alan), 1858-1929.
Date:
1888
Catalogue details

Licence: Public Domain Mark

Credit: A handbook of surface antomy and landmarks / by Bertram C.A. Windle. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    Each ridge is bounded at either extremity by a strong prominent angle, the omier of which is by far the better marked; these angles are the external and internal an- gular processes. The former limits anteriorly the tern- poral fossa, the temporal muscle which it contains, and the temporal ridge with its attached fascia. By pushing up the skin covering the eyebrows, the supra-orbital notch may generally be felt at about the junction of the middle and internal thirds of the supra- ciliary ridge. This notch is sometimes replaced by a foramen, which may be situated somewhat deeply in the cavity of the orbit; its discovery is then more diffi- cult, but it may be found by deep pressure. Through this notch or foramen pass the supra-orbital nerve and artery. The former, a branch of the ophthalmic division of the fifth nerve, is one of the common seats of facial neuralgia, for which complaint it may be necessary that it should be stretched or divided. Two other spots, at which branches of the fifth nerve emerge from bony canals, are of similar importance. The infra-orbital branch of the superior maxillary division emerges from the infra-orbital canal beneath the prominent ridge which forms the lower margin of the orbit. The infra-orbital foramen whose aperture looks inwards, is covered by muscles and cannot generally be felt from the surface. The same remark applies to the mental foramen situated in the inferior maxilla. Through this foramen which also looks inwards the mental branch of the inferior maxillary division of the fifth nerve escapes. The position of these two last mentioned foramina may be