Figure 2.

Mouse. Spinal Cord, transverse, H+E. (A), (B) cervical. (C), (D) lumbar. Samples collected via ejection (A), (C) are devoid of meninges and other structures such as spinal nerves. These structures are generally at least in part preserved in samples collected by laminectomy (B), (D). Otherwise preservation of morphological detail is comparable between the methods. Small artifacts that may be present in samples collected by ejection (arrows) include slight superficial fraying, occasional indentations, and small areas of extravasated blood (dashed circle). Artifacts more commonly seen in samples collected by laminectomy include small tears near nerve roots (arrowheads). Me = meninges; DNR = dorsal nerve root; DG = dorsal root ganglion; VSA = ventral spinal artery. Bars = 500 μm.