arachnoid membrane

Small fragments of mucous membrane may be found, and when examined by a pathologist, may occasionally establish the diagnosis.

The damage which they do to the mucous membrane favors bacterial invasion.

It lives in the large intestine, especially the cecum, with its slender extremity embedded in the mucous membrane.

The thread was lodged in the perforated part, and consequently left in contact with the cellular membrane.

Of these coats he rightly supposes the outermost to be merely the epidermis of the middle membrane or testa.