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.
A compound leaf is one in which the leaf blade in broken up into a number of segments called leaflets. All borne on a single stalk called the rachis. Compound leaves can be seen in rose, neem and coriander. leaf having a single or undivided blade is called a simple leaf. The blade may be entire or lobed to any depth, but not down to the midrib or petiole. Simple leaves are found in mango, peepal, guava and many others.