. The anatomical record. Anatomy; Anatomy. 484 ARTHUR 'W. MEYER i PERFORATE SPHENOIDAL SINUSES WITH SUBDURAL DIVERTICULA Specimen a is from the bod}^ of a white man, twenty-eight years of age, who died of tuberculosis. There are two sphenoidal sinuses, as usual, in this specimen; the right sinus extends several millimeters across the median line. The septum is located in almost a sagittal plane lying 2 to 3 mm. to the left. The form of the right sinus is oval with its long axis—which is practically parallel to the upper surface of the basilar process of the occipital bone—^making an angle of.
. The anatomical record. Anatomy; Anatomy. 484 ARTHUR 'W. MEYER i PERFORATE SPHENOIDAL SINUSES WITH SUBDURAL DIVERTICULA Specimen a is from the bod}^ of a white man, twenty-eight years of age, who died of tuberculosis. There are two sphenoidal sinuses, as usual, in this specimen; the right sinus extends several millimeters across the median line. The septum is located in almost a sagittal plane lying 2 to 3 mm. to the left. The form of the right sinus is oval with its long axis—which is practically parallel to the upper surface of the basilar process of the occipital bone—^making an angle of. Fig. 1 Developmental defect in the lateral wall of the sphenoid and sphenoidal diverticulum; side view. approximately forty-five degrees with the vertical. This diam- eter measures mm., the vertical one 15 mm. and the transverse (right to left) 18 mm. The lining membranes of the sinuses are thin and they are not abnormally adherent anywhere. The roof of the right sinus is very thin, measuring only mm. (by micrometer caliper) directly beneath the sella and a little to the left of the median line; its minimum thick- ness is only mm. Although the configuration of the left sinus is similar to that of the right it is much smaller, measuring only 11 mm. in a transverse Tright to left) diameter and 22 mm. in the longest. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
