Frontal bone

Cell metabolism induction. Methanol extract of STE, in collagen-producing cells, stimulated glycolysis by 80% in cartilage but was not affected in the other tissues. Medium alkaline phosphatase activity was unaffected. In the frontal bone and cartilage, [ H]hydroxyproline and [ H]proline contents were decreased. Neither was affected in the aorta. 

A 34-year-old woman who had taken intranasal metamfetamine weekly for 15 years developed osteomyelitis of the frontal bone and a subperiosteal abscess. The authors proposed that this was due to chronic abuse of metamfetamine (80). 

A rare case of Pott s puffy tumor, anterior extension of a frontal sinus infection that results in frontal bone osteomyelitis and subperiosteal abscess, has been associated with metamfetamine use (81). 

Pott s puffy tumor, a subperiosteal infection of the frontal bone, has been described in a 34-year-old man with a history of chronic intranasal cocaine use (117). 

Mateev G, Kantjardjiev T, Vassileva S, Tsankov N Chronic mucocutaneous candidosis with osteomyelitis of the frontal bone. Int J Dermatol 1993 32 888-889. 

Antler is the fastest growing mammalian tissue, and is a type of bone. Antlers emerge from the frontal bone of the skull of an animal in the mammal family Cervidae. With the exception of reindeer or caribou, antlers are only carried by the males. 

There is one other bone which could be useful to geochemists interested in assessing environmental exposures. Antlers, but not horns, are shed annually. Both these organs have a bony core but horn is covered with dead keratinous tissues while antlers are covered initially by velvet, an epidermal tissue with separate blood and neural supply. Once the velvet has been rubbed off, the bony super-stmcrnre that has formed and mineralized very rapidly provides the animal with a remarkable headdress. After the breeding season osteoclasts resorb at the base where the antler is attached to the frontal bone of the skull and antlers may be relatively easily obtained for analyses. Male deer, reindeer, and caribou regrow their membranous bone excrescences each year with an increase in the complexity and size of these unique structures... 

Although this result strongly supports the hypothesis that reduced Msx2 function is responsible for familial parietal foramina in humans, one inconsistency is that in humans the defect is in the parietal bone, whereas in mice it is in the frontal bone... 

Tyler, M.S. 1983. Development of the frontal bone and cranial meninges in the embryonic chick an experimental study of tissue interactions. Anat. Rec. 206, 61-70. 

Cyanoacrylates were shown to form a strong durable bond between bones in vitro. Tensile adhesive strength betw een smooth bovine cortical bone specimens bonded together with the isobutyl monomer and tested after one day storage in water was approximately 6.5 mPa (Brauer et al, 1979). The monomer was used, without evidence of histotoxicity, to repair osteochondral fractures (Harper and Ralston, 1983) and recently to improve meniscal repairs (Koukabis et al, 1995). Butylcyanoacrylate was also used in facial bone surgery for frontal bone reconstitution (Avery and Ord, 1982). 

Laterally, the orbital wall includes parts of the zygomatic, sphenoid, and frontal bones and neighbors the temporalis fossa laterally and the middle cranial fossa posterolaterally. 

An "L"-shaped articulation exists between the anterosuperior surface of the greater wings of the lateral inferior surfaces of the frontal bone. It is a serrate suture. 

Two other articulations, also serrate, exist between the anterior border of the lesser wings laterally and the orbital surface of the frontal bone, and between the anterosuperior surface of the body medially and the... 

FIG. 103-18 Frontal bone. (A) Anterior view. (B) Inferior view. 

The frontal bone acts as paired bones do, rotating externally under the influence of the sphenoid. The axis of motion runs from the frontal eminence through the center of the orbital plate. The inferior lateral angles move laterally and anteriorly. The glabella recedes slightly under the influence of the falx. 

It descends over the frontal bone to the edge of the orbital margin where it interlaces with the fibers of the orbicularis oculi without having any bone attachment. 

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