. The elements of embryology . Embryology. THE SENSE CAPSULES. 241 iutemasal septum, continuous behind with the inter- orbital septum, grows up (Fig. 78); while the lateral Fig. 78. tlln. 7n^ Side view of the cartilaginous cranium of a Fowl on the SEVENTH DAT OF INCUBATION. (After Parker.) pn. prenasal cartilage, aln. alinasal cartilage, ale. aliethmoid; immediately below this is the ahseptal cartilage, eth. eth- moid, pp. para plana, ps. presphenoid or inter-orbital. pa. palatine, pg. pterygoid, z. optic nerve, as. aHsphenoid. q. quadrate, st. stapes, fr. fenestra rotunda, hso. horizon
. The elements of embryology . Embryology. THE SENSE CAPSULES. 241 iutemasal septum, continuous behind with the inter- orbital septum, grows up (Fig. 78); while the lateral Fig. 78. tlln. 7n^ Side view of the cartilaginous cranium of a Fowl on the SEVENTH DAT OF INCUBATION. (After Parker.) pn. prenasal cartilage, aln. alinasal cartilage, ale. aliethmoid; immediately below this is the ahseptal cartilage, eth. eth- moid, pp. para plana, ps. presphenoid or inter-orbital. pa. palatine, pg. pterygoid, z. optic nerve, as. aHsphenoid. q. quadrate, st. stapes, fr. fenestra rotunda, hso. horizon- tal semicircular canal, psc. posterior vertical semicircular canal: both the anterior and the posterior semicircular canals are seen ' shining through the cartilage, so. supra- occipital, eo. exoccipital. oc. occipital condyle, na. noto- chord. mh. Meckel's cartilage, ch. cerato-hyaL hh. basi- hyal. chr. and ehr. cerato-branchial. hhr. basibranchial. part is known, as the lateral ethmoid region, which is always perforated for the passage of the olfactory nerve. The sense capsules. The most important of these is the auditory capsule, which, as we have seen, fuses intimately with the lateral walls of the skull. In front there is usually a cleft separating it from the alisphe- F. & B. 16. 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 Foster, M. (Michael), Sir, 1836-1907; Balfour, Francis M. (Francis Maitland), 1851-1882; Sedgwick, Adam, 1854-1913; Heape, Walter, 1855-1929. London ; New York : Macmillan
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Keywords: ., bookcentury1800, bookdecade1880, bookpubli, booksubjectembryology
