. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. 43 6 THE INTERNAL EAR form a fiber of the auditory nerve, while the other penetrates the wall of the otocyst to enter into relations with certain specially modified cells which differentiate from its lining epithelium. â In the earliest stages the ectodermal lining of the otocyst is formed of similar columnar cells, but later over the greater part of the surface the cells flatten down, only a few, aggregated together to. Fig. 258.âThe Right Internal Ear of an Embryo of Six Months. ca, ce, and
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. 43 6 THE INTERNAL EAR form a fiber of the auditory nerve, while the other penetrates the wall of the otocyst to enter into relations with certain specially modified cells which differentiate from its lining epithelium. â In the earliest stages the ectodermal lining of the otocyst is formed of similar columnar cells, but later over the greater part of the surface the cells flatten down, only a few, aggregated together to. Fig. 258.âThe Right Internal Ear of an Embryo of Six Months. ca, ce, and cp, Superior, lateral, and posterior semicircular ducts; cr, crista acustica; de, endolymphatic duct; Is, spiral ligament; mb, basilar membrane; ms and tnu, macula acustica sacculi and utriculi; rb, basilar branches of the cochlear nerve.â(Retzius.) form patches, retaining the high columnar form and developing hair- like processes upon their free surfaces. These are the sensory cells of the ear. In the human ear there are in all six patches of these sensory cells, an elongated patch {crista ampullaris) in the ampulla of each semicircular canal (Fig. 258, cr), a round patch {macula acus-. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia : P. Blakiston's son & co.
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectembryology
