perichondrium

Except where it coats the articular ends of bones, it is covered externally by a fibrous membrane, the perichondrium, from the vessels of which it imbibes its nutritive fluids, being itself destitute of bloodvessels.

III. Syndesmology. Introduction 1918

The tissue surrounding the original mesodermal core forms fibrous sheaths for the developing bones, i. e., periosteum and perichondrium, which are continued between the ends of the bones over the synovial membrane as the capsules of the joints.

III. Syndesmology. 2. Development of the Joints 1918

The second stage consists in the prolongation into the cartilage of processes of the deeper or osteogenetic layer of the perichondrium, which has now become periosteum (Fig. 79, ir).

II. Osteology. 2. Bone 1918

It is believed by some histologists that the matrix is permeated by a number of fine channels, which connect the lacunæ with each other, and that these canals communicate with the lymphatics of the perichondrium, and thus the structure is permeated by a current of nutrient fluid.

III. Syndesmology. Introduction 1918

This appears, at first sight, to be an exception to the statement that cartilage is a non-vascular tissue, but is not so really, for the vessels give no branches to the cartilage substance itself, and the channels may rather be looked upon as involutions of the perichondrium.

III. Syndesmology. Introduction 1918

This is covered by a very vascular membrane, the perichondrium, entirely similar to the embryonic connective tissue already described as constituting the basis of membrane bone; on the inner surface of this—that is to say, on the surface in contact with the cartilage—are gathered the formative cells, the osteoblasts.

II. Osteology. 2. Bone 1918

—The nasal mucous membrane lines the nasal cavities, and is intimately adherent to the periosteum or perichondrium.

X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell 1918

Where a muscle is attached to bone or cartilage, the fibers end in blunt extremities upon the periosteum or perichondrium, and do not come into direct relation with the osseous or cartilaginous tissue.

IV. Myology. 1. Mechanics of Muscle 1918

By the agency of these cells a thin layer of bony tissue is formed between the perichondrium and the cartilage, by the intramembranous mode of ossification just described.

II. Osteology. 2. Bone 1918

The free surface of articular cartilage, where it is exposed to friction, is not covered by perichondrium, although a layer of connective tissue continuous with that of the synovial membrane can be traced in the adult over a small part of its circumference, and here the cartilage cells are more or less branched and pass insensibly into the branched connective tissue corpuscles of the synovial membrane.

III. Syndesmology. Introduction 1918