Osteons are arranged in parallel to the long axis of the bone. The Haversian canals surround blood vessels and nerve cells throughout the bone and communicate withosteocytes in lacunae (spaces within the dense bone matrix that contain the living bone cells) through canaliculi.
Any donation to a political party, campaign, or action committee is not tax deductible. 1  According to the Internal Revenue Service, âYou cannot deduct contributions made to a political candidate, a campaign committee, or a newsletter fund. 2  Limits On Contributions To Political Campaigns.
Contributions (IRAs and Pension Plans). The most you can deduct for your contributions to you or your employee's SEP-IRA is the lesser of the following amounts. In 2015, the amounts in (2) above are $265,000 and $53,000, respectively.1  Your contributions (including any excess contributions carryover).educting Contributions (p6). Deductible Contributions. Generally, you can deduct the contributions you make each year to each employee's SEP-IRA. If you are self-employed, you can deduct the contributions you make each year to your own SEP-IRA.