By comparing foramen magnum position broadly across mammals, the researchers were able to rule out other potential explanations for a forward-shifted foramen magnum, such as differences in brain size.

"Humans picked up some Neanderthal DNA through interbreeding, while the Neanderthal population, always fairly small, was swept away by the waves of new arrivals." Nor is this the first case of a ...

Another look at the foramen magnum in bipedal mammals. Journal of Human Evolution, 2017; 105: 24 DOI: 10.1016/j.jhevol.2017.01.018 Gabrielle A. Russo, E. Christopher Kirk.

Chiari malformation type 1 is a rare brain condition where the cerebellum, a brain area responsible for balance and posture, droops down slightly through a small hole in the skull called the foramen ...

A foramen magnum decompression by the removal of the outer layer of the dura mater was performed. Results: At 2 years postoperatively, MRI revealed a decrease in the size of the syringomyelia.

The key feature is a forward-shifted foramen magnum, the hole in the bottom of the skull through which the spinal cord passes. Scientists argue the adaptation ensured the brain remained centered ...

Foramen magnum: the large opening in the skull through which the spinal cord enters. Diurnal: animal that is mostly active during the day. Nocturnal: animal that is mostly active at night. Binocular ...

Achondroplasia, a form of skeletal dysplasia, is inherited in an autosomal dominant manner. Most cases occur as a result of pathogenic missense mutations of the FGFR3 gene (i.e., both parents ...

Die metrische Analyse des Primatenschädels verfolgt zwei Ziele: a) Analyse der Indikatorfunktion bestimmter Schädelmerkmale (z. B. Foramen magnum, Länge des M₂) für die Körpergewichtsbestimmung und b) ...

Chiari malformation type I (CMI) is a congenital neurological disorder characterized by the herniation of the cerebellar tonsils through the foramen magnum, which impairs cerebrospinal fluid ...

Walking on two legs went hand inhand with change in the human skull, say scientists who found that bipedal mammals have a more forward-positioned foramen magnum than their four-legged relatives.