anatomy Anatomy () is the branch of morphology concerned with the study of the internal structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old scien ...

, the Schneiderian membrane is the membranous lining of the maxillary sinus cavity. Microscopically there is a bilaminar membrane with pseudostratified ciliated columnar epithelial cells on the internal (or cavernous) side and

periosteum The periosteum is a membrane that covers the outer surface of all bones, except at the articular surfaces (i.e. the parts within a joint space) of long bones. (At the joints of long bones the bone's outer surface is lined with "articular cartila ...

on the osseous side. The size of the sinuses varies in different

skulls The skull, or cranium, is typically a bony enclosure around the brain of a vertebrate. In some fish, and amphibians, the skull is of cartilage. The skull is at the head end of the vertebrate. In the human, the skull comprises two prominent ...

, and even on the two sides of the same skull. This membrane is present in the nasal chamber which helps to smell (olfactory receptor)

References

{{reflist Human head and neck