. Journal of anatomy . Fig. 5.—Reconstruction model: embryo 12 mm. an imperfectly open cliannel runs down to the trachea in the dorsal part ofthe cavity. VII. (22 mm., fig. 7).—The surface appearances here arie much the sameas in the last model, save that the outer parts of the lateral masses are moreprominent. VIII. (35 mm., fig. 8).— The lateral swellings do not fill the cavity ofthe pharynx, but are much slighter, thinning upwards to their apices ; theseare separated from the epiglottis by a transverse fissure with the points ofthe limbs turned back, continuous in the middle line with the o
. Journal of anatomy . Fig. 5.—Reconstruction model: embryo 12 mm. an imperfectly open cliannel runs down to the trachea in the dorsal part ofthe cavity. VII. (22 mm., fig. 7).—The surface appearances here arie much the sameas in the last model, save that the outer parts of the lateral masses are moreprominent. VIII. (35 mm., fig. 8).— The lateral swellings do not fill the cavity ofthe pharynx, but are much slighter, thinning upwards to their apices ; theseare separated from the epiglottis by a transverse fissure with the points ofthe limbs turned back, continuous in the middle line with the open sagittalcleft. The latter lias come down from its somewhat dorso-ventral directionnearly to its original plane. The cavity is open nearly throughout. Tiietops of the lateral swellings are at a lower level than in the last two models,judging from their relation to the position of the thyro-liyoid is not a transverse bar, but a thick median upstanding Z, Cornu G-Cornu ; Th, Fig. 6(16 mm.)- A IS a view fioni behind of the iiiodtl. about half size, with part of the tloor removed below. B is a side view of the cricoid and arytsenoid rudiments lying against the lining of the sagittalcavity : the transverse cavit\- is seen in front of the arytaenoid. The epiglottic ridge is seenabove and in front, and behind this is the lateral mass separated from it by the depression ofthe transverse opening. C. Median section through •cavity. The greater part of the area of the sagittal wall is adherent, leaving only channels along the tlorsal wall and floor. The ventral lamina () is seenbelow the floor, as in the previous figure. D. The form of the liyoid and thyroid : the lesser cornu is continuous with its fellow in the upper })art of the ? larynx is outlined seems most advanced in the dorsal aspect of the bod\, where there is a single median nodule that is plainly cartilaginous. The rest of the structure sho
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectanatomy, bookyear1867
