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Updated: May 31, 2025
Chief among them were specimens of that dreadful cartilaginous genus that's divided into three subgenera numbering at least thirty-two species: striped sharks five meters long, the head squat and wider than the body, the caudal fin curved, the back with seven big, black, parallel lines running lengthwise; then perlon sharks, ash gray, pierced with seven gill openings, furnished with a single dorsal fin placed almost exactly in the middle of the body.
Cartilaginous tissue forms smooth coverings over the ends of the bones and, in addition to this, supplies the necessary stiffness in organs like the larynx and the ear. *Properties of the Tissues.*—If we inquire how the tissues are able to serve such widely different purposes, we find this answer.
that has the beard come out, there will be abundant rains; As ancient and as obscure as are these records, Ballantyne has carefully gone over each, and gives the following lucid explanatory comments: Generally some cartilaginous remnant is found, but on this point the Chaldean record is silent.
The trachea and bronchi are tubes, furnished with cartilaginous rings to keep them from collapsing. They are lined with mucous membrane. The bronchi give off branches, which in turn divide and subdivide, until they become very fine. Upon the last subdivisions are clustered many cells or vesicles.
The nasal chambers are divided into two by a vertical partition, as one can readily demonstrate by the use of his fingers, and are still further broken up by certain bones, the scroll-shaped or turbinated bones, so that the nasal chambers are of very limited size, and much divided up by bony outgrowths from their walls. The vertical septum, while bony above, is cartilaginous and flexible below.
The presentation was first by the stomach and afterward by the breech. These twins were united at the sacra by a cartilaginous or possibly osseous union. They were exhibited in Paris in 1873, and provoked as much discussion there as in the United States. Physically, Millie was the weaker, but had the stronger will and the dominating spirit. They menstruated regularly from the age of thirteen.
The third branchial arch is only cartilaginous at the foremost part, and here the body of the hyoid bone and its larger horn are formed at each side by the junction of its two halves. They have been lost long ago. Moreover, the four gill-clefts of the human embryo are only interesting as rudimentary organs, and they soon close up and disappear.
These complex arrangements of parts could not have been evolved by "Natural Selection," i.e. by minute accidental variations, except by the action of such through a vast period of time; nevertheless, it was fully evolved at the time of the deposition of the upper Silurian rocks. In the base of this cranium are two cartilaginous chambers.
She had a large cartilaginous tumor between the bones of the fore-arm, which, as it gradually enlarged, so distended the muscles as to render her unable to work. She applied to me to excise it. I requested her to bring her husband, if he were willing to have the operation performed, and, while removing the tumor, one of the small arteries squirted some blood into my eye.
The cartilaginous pads between the vertebræ permit, by their elasticity, of a slight bending of the column in different directions. These movements are caused, not by one bone gliding over another, but by compressions and extensions of the cartilage. Between the vertebræ in the back of the spinal column, however, there is a slight movement of the bone surfaces upon one another.
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