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.
All plants have a time when they rest or go dormant. For deciduous trees, it is when they lose their leaves during the winter. Most evergreen plants, like citrus, also rest during the times of cooler temperatures, resuming growth and development when the temperatures begin to rise in the spring.The absolutely best time to do heavy pruning is during the coldest months.Should I prune my citrus trees this winter?â My immediate answer to that question is always: âWhy?â Unlike deciduous fruit trees such as peaches, apricots and apples, citrus do not need to be pruned each year. In fact, they do better without it.