subserous fascia /-sir″əs/ [L, sub + serum, whey, fascia, band] , one of three kinds of fascia lying between the internal layer of deep fascia and the serous membranes lining the body cavities in much the same manner as the subcutaneous fascia lies between the skin and the deep fascia. It is thin in some areas, such as between the pleura and the chest wall, and thick in other areas, where it forms a pad of adipose tissue. Compare deep fascia, subcutaneous fascia.
