. Journal of anatomy . ere the shading crosses it. floor between the slight prominence of the oth arches. This fissure, withits bounding arches, lies at first behind the level of the 4th pouches andreaches in front to the base of the central mass. The position of the opening and the arches at this stage is seen in thediacfram in fio-. 10. The Development of the Larynx 171 As growth proceeds, the hssure gradually comes to occupy a higherposition with reference to the -Ith pouches, and the prominence of the5th arches becomes more marked, so that, by the end of the fourth week,the 4th pouch level
. Journal of anatomy . ere the shading crosses it. floor between the slight prominence of the oth arches. This fissure, withits bounding arches, lies at first behind the level of the 4th pouches andreaches in front to the base of the central mass. The position of the opening and the arches at this stage is seen in thediacfram in fio-. 10. The Development of the Larynx 171 As growth proceeds, the hssure gradually comes to occupy a higherposition with reference to the -Ith pouches, and the prominence of the5th arches becomes more marked, so that, by the end of the fourth week,the 4th pouch level crosses the tissure about half way down its length, andthe front end of the swollen 5th arches are lost, beside the anterior extremityof the fissure, on the base of the central mass a little below the level of the3rd pouches. The position at this stage is seen in fig. 11, where, in consequence ofthe apparent forward dislocation of the area, the 5th arches are now seento have the 4th arches as antero-lateral
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectanatomy, bookyear1867
