Fig. 1
From: The presence and degradation of nerve fibers in articular cartilage of neonatal rats
Microscopy of the cartilage tissue. A1, B1, C1 articular cartilage (AC) of 1-, 5- and 10-day postnatal rats. Red arrows point the chondrocytes, yellow arrow represents the cartilage canal, and the blue arrow represents the secondary ossification center. A2 chondrocytes with few calcium depositions in the AC of 1-day postnatal rats. B2 a cartilage canal containing blood vessels in the AC of 5-day postnatal rats (yellow arrow) with increased calcium deposition. C2 cartilage canals connected secondary ossification center in the AC of 10-day postnatal rats (yellow arrow)