Fig. 2

Parameters of L5/L6 intervertebral discs in rats. (A) Schematic diagram of disc diameter and height measurement; (B) L5/L6 intervertebral disc diameter in rats of different body weights; (C) The average height of L5/L6 intervertebral discs in rats of different weights; (D) Schematic diagram of intervertebral foramen angle measurement