Table 2. Morphometric analysis of carotid bodies from control and CIH-conditioned rats.

	Total volume, μm3	Glomic volume, μm3	Glomic volume/total volume	Glomus cells/section	Glomus cell volume, μm3
Control	(5.4 ± 0.9) × 106	(1.7 ± 0.3) × 106	0.31 ± 0.01	1,081 ± 165	1,493 ± 134
CIH	(5.6 ± 0.6) × 106 n.s.	(1.6 ± 0.2) × 106 n.s.	0.27 ± 0.01n.s.	1,232 ± 179n.s.	1,326 ± 72n.s.

Data are mean ± SEM. n.s., not significant (P > 0.05 compared with control, n = 4 carotid bodies from two animals and 20 sections from each group).