For example, a peripheral neuropathy caused by a vitamin deficiency can be treated -- even reversed -- with vitamin therapy and an improved diet. Likewise, nerve damage brought on by alcohol abuse can often be stopped and improved by avoiding alcohol.
2. Vascular tissue - xylem and phloem in leaves form in strands called veins. Xylem forms on the upper side of a vein (on a vertical leaf, on the side next to the stem), and phloem on the lower side (side away from the stem). a. Veins are like a leaf's fingerprint and can be used to identify plants.
Monocot leaves. A vascular bundle in the stem or leaf of a plant. vascular bundles of xylem and phloem, typically strengthened with fibers. In eudicots, large veins branch into a network of minor veins embedded in mesophyll; in monocots, veins are similar in length and run parallel with the leaf's long axis. Vein.