elastic membrane n.
A membrane formed of elastic connective tissue fibers, such as that surrounding the arteries.
Between these two is a structureless, elastic membrane, which tends to keep the body moderately expanded.
Around the cuticular sheath of the notochord there is formed an elastic membrane—the membrana elastica externa.
Gaps occur in the elastic membrane which become covered by endothelium.
Around the cuticular sheath of the notochord an elastic membrane, the membrana elastica externa, is next developed.
On the outside of the elastic membrane, just beneath the ectoderm, is a plexus or cobweb of nervous cells and fibrils.