Tag: "cranial" at biology news

Potential treatments for neurofibromatosis

... Occasionally, tumors may develop in the brain, on cranial nerves, or on the spinal cord. However, a rare form of the disease occurs in infants and young children, with tumors growing on major nerves, such as the sciatic nerve that connects the spinal cord with the leg and foot muscles. The tumors can inter...

Mystery Blood Vessel Disorder Implicated In 'Mini' Strokes

...ip between the diameter of the basilar artery, the cranial artery most often affected in dolichoectasia, and the severity of small vessel disease. "This study is the first to show an association between intracranial arterial dolichoectasia and the whole spectrum of small vessel disease abnormalities, thus d...

Researchers track down cause of a disfiguring bone disorder

... patients, causing facial distortions and pinching cranial nerves, which can lead to deafness and blindness. Collarbones, ribs and long bones can also be affected. The research team, led by Gabriela Loots of Livermore's Genome Biology Division, reports its findings today in the online version of the journal...

Duck-billed dino crests not linked to sense of smell

...ambeosaurs are easily recognizable for their large cranial crests, which contain elongated nasal passages and loop over their skull. Duck-billed dinosaurs are sometimes referred to as the "Cows of the Cretaceous period" and lived 85 million to 65 million years ago. Evans reconstructed the dinosaurs' brain c...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...rences. Among them, in addition to its distinctive cranial crest, Guanlong was roughly 100 million years olde...y the end of its relatively long 13-year life. Its cranial crest would have reached its full size by then, thus providing an accurate model for scientists. The...

Relationship of brain and skull more than just packaging

...it shares with evolutionary history a reduction in cranial elements and coincident changes in the shape of the skull and brain. The researchers believe that studying craniosynostosis could shed light on the joint evolution of the brain and skull. The two types of craniosynostosis the researchers studied wer...

Making a face: A new and earlier marker of neural crest development

...the one we have uncovered is related to the early, cranial neural crest cells, the only ones in higher vertebrates that retain bone and cartilage forming potential." ...

Study suggests evolutionary link between diet, brain size in orangutans

...tly exhibit the absolutely and relatively smallest cranial capacity," the researchers concluded. Although the researchers found reduced brain sizes in both male and female orangutans, the differences within the small group of animals studied were statistically significant only for the females, they noted. ...

Radiologists attempt to solve mystery of Tut's demise

...several pieces of evidence to the contrary. In the cranial cavity, they found loose bone fragments that were not covered with the intracranial solidified embalming material. These bone fragments matched exactly a defect within the first vertebra in the neck. They found no evidence of skull fractures. A mi...

Highly concentrated botulinum preparation for cosmetic injections can result in severe illness

...ally reported symptoms of progressive weakness and cranial neuropathies (abnormality of the nerves that contr...se, which invariably presents with acute bilateral cranial neuropathies, regardless of exposure mechanism. Early recognition of botulism, treatment in an inten...

Mysterious 'neural noise' actually primes brain for peak performance

...to one stored in your head. But the reality of the cranial world seems to be a confusing array of possibilities and probabilities, all of which are somehow, mysteriously, properly calculated. The science of drawing answers from such a variety of probabilities is called Bayesian computing, after minister Th...

Ancient amphibians evolved a bite before migrating to dry land

... Polypterus as it fed. They then analyzed the same cranial junctions in several fossils -- the early amphibian Acanthostega, its fishy ancestor Eusthenopteron, and the extinct terrestrial amphibian Phonerpeton -- to determine how these bones may have moved relative to each other during feeding. By analyzing ...

New sucker-footed bat discovered in Madagascar

...ed on pelage coloration, external measurements and cranial characteristics, according to the researchers. Myzopoda are often found in association with broad-leaf plants, most notably Ravenala madagascariensis or the Travelers' Palm, a plant that is endemic to Madagascar but has been introduced to numerous t...

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