Where Did the Dura Mater Come from?

Where did bone come from?

Bone is specific to vertebrates, and originated as mineralization around the basal membrane of the throat or skin, giving rise to tooth-like structures and protective shields in animals with a soft cartilage-like endoskeleton. A combination of fossil anatomy and genetic information from modern species has improved our understanding of the evolution of bone. Thus, even in man, there are still si...

Polysaccharide from dura mater.

Polysaccharide from Dura mater By Yoshiharu Saito and Koh-Iti Turumi (齋 藤 義 治) (鶴 見 膠 一) From the Department of Biochemistry, Fukushima Medical College, Fukushima (Received for publication, October 10, 1954) Chemical studies of dura mater has not as yet been accomplished. Histologicaly dura mater is composed of connective tissue. We examined the tissue histochemically by periodic acid oxidation...

Where did knowledge management come from?

In this essay I look at the history of knowledge management and offer insights into what knowledge management means today and where it may be headed in the future. N ow that knowledge management is widely known and practiced in many large organizations , it might be useful to look back a bit and try to give some perspective on how this old but new subject developed and, in particular, what some...

WNV: where in the world did that come from?

Where did the ventricular localization of mental faculties come from?

During the Middle Ages it was widely believed that the various mental faculties-sensation, cognition, memory, and so forth-were each located in a specific part of the three ventricles that were thought to be housed in the brain. The origin of this scheme was commonly attributed to the ancient scholars, but it was rare for a specific individual to be identified as the originator. Modern research...