. Cunningham's Text-book de l'anatomie. L'anatomie. Fig. 1075.-sinus frontaux de dimension moyenne, avec un septum médian (Logan Turner). Fig. 1076. - Un grand sinus frontal droit avec septum oblique à gauche (Logan Turner). formulaire l'apophyse mastoïde, cellules qui rayonnent à partir de l'antre, et que ce soit directement ou indirectement, de communiquer avec elle par de petites ouvertures. Dans le type de pneumatique mastoïde l'ensemble du processus est fouillé par ces cellules, qui s'étendent vers le haut dans la partie squameuses, transmet à la paroi postérieure de l'os du méat (border-cellules), et en arrière dans l'os occipital. Pus ret

• Contributeur: Central Historic Books / Alamy Banque D'Images
• ID de l’image: PFY384
• Taille du fichier: 7,1 MB (308,7 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1394 x 1792 px | 23,6 x 30,3 cm | 9,3 x 11,9 inches | 150dpi

Informations supplémentaires

Cette image appartient au domaine public, ce qui signifie que le droit d’auteur a expiré ou que le titulaire du droit d’auteur a renoncé à ses droits. Les frais facturés par Alamy couvrent l’accès à la copie haute résolution de l’image.

Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.

. Cunningham's Text-book of anatomy. Anatomy. Fig. 1075.—Frontal Sinuses of Average Dimensions, with a Medial Septum (Logan Turner). Fig. 1076. — A Large Right Frontal Sinus with Septum oblique to the Left (Logan Turner). form the mastoid cells, which radiate from the antrum, and either directly or indirectly communicate with it by small openings. In the pneumatic type of mastoid the whole of the process is excavated by these cells, which extend upwards into the squamous portion, forwards to the posterior wall of the osseous meatus (border-cells), and backwards into the occipital bone. Pus retained within the " border-cells" may bulge into, and rupture through, the posterior wall of the osseous meatus. Less frequently the mastoid cells are absent, the bone consisting either of osseous tissue similar to that of the diploe, or of dense bone (sclerosed type). The mastoid process is grooved upon its medial surface by the sigmoid portion of the transverse sinus. The average distance of the foremost part of the sinus from the supra-meatal spine is 1 cm. The right sinus usually receives the superior sagittal sinus, and when this is the case at is larger and farther forward than the left; in extreme cases it may reach to within 2 or 3 mm. of the meatus. The average minimum distance of the transverse sinus from the outer surface of the mastoid is about 1 cm., but when the sinus is large and far forward the thickness may be reduced to 1 or 2 mm. The facial nerve, after entering the facial canal at the bottom of the internal acoustic meatus, lies immediately above and behind the fenestra ovalis, between it and the prominence of the lateral semicircular canal; thence it descends almost vertically in the mastoid wall of the tympanum i in. posterior and medial to the. 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

Recherche dans la banque de photos par tags

• bookcentury1900
• bookdecade1910
• bookyear1914
• livresubjectanatomy