Nasal bones

Carcinogens Cancer-producing agents Skin Respiratory Bladder/urinary tract Liver Nasal Bone marrow Coal tar pitch dust crude anthracene dust mineral oil mist arsenic. Asbestos polycyclic aromatic hydrocarbons nickel ore arsenic bis-(chloromethyl) ether mustard gas. p-naphthylamine benzidine 4-am i nodi pheny lam ine. Vinyl chloride monomer. Mustard gas nickel ore. Benzene. 

Musculoskeletal Effects. Few musculoskeletal effects have been reported in the literature after an acute, intermediate, or chronic exposure to chloroform in humans or in laboratory animals. Larson et al. (1996) investigated the ability of acute- and intermediate-duration exposure to chloroform vapor to produce toxicity and regenerative cell proliferation in various tissues of female B6C3Fi mice. Using the methods described in previous sections of this profile, Larson et al. (1996) found that, after acute exposure, no microscopic changes were noted in nonnasal bones, nor were non nasal bone Lis different from those of controls. In the intermediate duration studies, no alterations in nonnasal bone tissues were noted at any exposure level in either sex after exposures of 3, 6, or 13 weeks. 

Moon SH, Baek SO, Jung SN, Seo BF, Lee DC, Kwon H. Efficacy of biodegradable synthetic polyurethane foam for packing nasal bone fractures. J Craniofacial Surg 2012 23(6) 1848-50. 

Sarcoid bone involvement occurs in 1% to 13% of patients (213). It is most common in patients between the ages of 30 and 50 and in African Americans (213). Bone lesions are most common in the bones of the hands and feet however, the nasal bones, skull, and vertebrae may be affected (213). The lesions are often asymptomatic and routinely found on radiographic or MR studies. Radiologic findings usually show cystic or punched-out lesions (221). Sarcoidosis arthritis is usually treated with nonsteroidal anti-inflammatory agents (215), which are especially useful for acute sarcoid arthritis. Chronic destructive synovitis may require systemic corticosteroids or intra-articular injections (213). The addition of azathioprine or methotrexate may improve results and be corticosteroid sparing (213). 

Dialipina reveals clear actinopterygian features in the scales (ganoine, narrow peg, anterodorsal extension), in the skull roof pattern (anteriorly widened rostral bone one nasal bone presence of a dermosphenotic and the lack of tectal, tabular, and squamosum), and in the presence of postcleithra (=lack of anocleithrum) and of a long-based pelvic fin. 

Keywords Chitosan Nanoparticles Microspheres Chemically modified chitosans Polyelectrolyte complexes Oral and nasal administration Nerve, cartilage and bone regeneration Wound dressing... 

Ritchie (1944) wrote The Organ of Jacobson consists of paired tubular bodies, vascular and richly innervated, lying enclosed in bone in the front of the nasal chamber, and communicating with the nostrils above, and on the other hand with the mouth by two naso-palatine canals which open behind the posterior incisors. It occurs from Amphibia onwards and is probably an accessory organ of smell". 

Perhaps the most benefit of calcitonin is in patients with or at risk for vertebral fractures. Nasal calcitonin increases vertebral bone mineral density by 1% to 3%.38-40 One 5-year study found a 30% decrease in the risk of vertebral fractures.38 Increases in hip bone mineral density and reductions in non-vertebral fractures have not been demonstrated.38-40 Calcitonin may have analgesic effects in women with back pain from vertebral fractures.41 However, enthusiasm for using calcitonin in this setting has waned in favor of managing fracture risk and pain separately.10... 

Transsphenoidal pituitary microsurgery Surgery through the nasal cavity to access the pituitary gland through the sphenoid bone. 

Turbinate Any of the scrolled spongy bones of the nasal passage. 

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