for this procedure , lesions are produced in the septal-hippocampal system of adult rats , and selected regions from collagen-supported schwann cell/neuron cultures ( consisting of schwann cells , extracellular matrix , and degenerating neuronal processes and myelin but devoid of neuronal perikarya and fibroblasts ) are positioned within the intracephalic cavity so that they bridge the lesion gap ( approximately 3 mm ) separating the septum and hippocampus .
C0009325
collagen
C0015350
extracellular matrix