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.
Hereâs what you need to know about what you can and cannot deduct: 1  Monetary contributions â Cash or other monetary contributions may be tax deductible as long as they are not set aside for use by a specific person. 2  Donations of property, including business inventory â These are also considered a valid tax deduction.