Anatomy and supply. The thenar musculature consists of four muscles located on the radial side of the palm. Together they form the 'ball' of the thumb known as the thenar eminence. They originate at different carpal bones and distally attach to the thumb. The thenar muscles are: Abductor pollicis brevis muscle: arises from the tubercles of the scaphoid and trapezium, and from the flexor retinaculum.
Steps. 1  1. Choose the proper time to prune lemon trees. 2  2. Remove all fruit from the tree. 3  3. Prune any branches that are damaged or diseased all the way back to the base.  4. Cut any branches that are smaller than the diameter of a 1  pencil. 5. Prune suckers as they appear at any time.  6. Decide if you want an open, compact, or hedge type tree look.
Though Meyer lemon trees are naturally shrub-like, they can also be pruned into tree form. When planted in the ground, they can grow up to 8-10 feet tall and up to 12 feet wide. When grown in garden pots, depending on the size of the pot, your plant will be smaller. What Meyer lemon trees like:1  Full sun.hen planted in the ground, they can grow up to 8-10 feet tall and up to 12 feet wide. When grown in garden pots, depending on the size of the pot, your plant will be smaller. What Meyer lemon trees like: 1  Full sun.