In Gallus sonneratii the barbs and barbules blend together, and form thin horny plates of the same nature with the shaft: in this variety of the goose, the shaft divides into filaments which acquire barbules, and thus resemble true barbs.
Their barbules are less developed than is the case with the quill feathers, so that the barbs separate readily from one another, especially at the base of the vane.
They have the stems of pennae, and the downy barbs and barbules of plumulae.
The barbules themselves frequently throw out filaments in the same manner, which are called barbicels, whose object is apparently the same--namely, that of connecting and retaining the barbules in position.
In Gallus sonneratii the barbs and barbules blend together, and form thin horny plates of the same nature with the shaft: in this variety of the goose, the shaft divides into filaments which acquire barbules, and thus resemble true barbs.
Section across the base of three anterior barbules showing attachment to barb.
Outline of a feather showing the relation of the barbs and barbules to the central axis or shaft.
As growth proceeds the cells of this middle layer arrange themselves in longitudinal rows to form the barbs, while the barbules are formed by a secondary splitting.
The remainder of the rods form the barbs andbarbules as in the down-feather.
Two barbules of the posterior series--seen only in cross-section in b.
A portion of the hooklet of the anterior series showing the method of interlocking with the barbules of the posterior series.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "barbules" in a variety of sentences. We hope that you will now be able to make sentences using this word.
