52 THE ESSENTIALS OF HISTOLOGY. 



The matrix immediately around the cartilage-cells is often marked 

 off from the rest by a concentric line or lines, this part of the matrix, 



a I 



FIG. 58. BORDER OF ARTICULAR CARTILAGE SHOWING FIG. 59. A CARTILAGE-CELL 



TRANSITION OF CARTILAGE CELLS INTO CONNECTIVE- IN THE LIVING STATE, 



TISSUE CORPUSCLES OF SYNOVIAL MEMBRANE. FROM FROM THE SALAMANDER. 



HEAD OF METATARSAL BONE, HUMAN. (About 340 (Flemming.) (Very highly 



diameters. ) magnified. ) 



or., ordinary cartilage-cells ; 6, 6, with branching processes. 



which is the latest formed, being known as the capsule of the cell The 

 cells are bluntly angular in form, the sides opposite to one another in 



FIG. 60. VERTICAL SECTION OF ARTICULAR CARTILAGE COVERING THE LOWER END 

 OF THE TIBIA, HUMAN. (Magnified about 30 diameters. ) 



a, cells ana cell-groups flattened conformably with the surface ; b, cell-groups irregularly 

 arranged ; c, cell-groxips disposed perpendicularly to the surface ; d, layer of calcined 

 cartilage ; e, bone. 



the groups being generally flattened. The protoplasm is very clear, 

 but it may contain droplets of fat ; and with a high power fine inter- 



