Schwann cells are part of the peripheral nervous system (PNS.) They have two major functions, they produce the myelin sheath which covers the schwan cell, which helps to repair and regenerate nerves that have been damaged. In addition, they help the nerve impulse to be passed on quicker so that the brain can send a impulse to ones bones and muscles.
Cells are the basic unit structure and function of all living thing's+
Schwann cells and oligodendrocytes
This questions has been answered below in the related discussions, "what are Schwann cells"
As there are nerve cells in stomach linings, one would assume so. Schwann cells are glial cells that protect and help neurons and are found in the peripheral nervous system--all nerves outside the brain and spine. So although I've never studied a dogs stomach, it seems impossible for them not to have them. Axons need the insulation provided by the schwann cells to properly function.
Schwann cells are glia that myelinate the neurons of the Peripheral Nervous System
The Remaining Schwann Cells schwann cells, after injury and disruption to target, the remaining schwann cells undergo a rapid mitotic division until the target tissue is reached and the successful pathway is regenerated under the structural guidance of the schwann cells,
Schliden, Schwann, and Virchow.
They are called oligodendrocytes but in the peripheral nervous system you would call them schwann cells.
Theodor Schwann concluded that all animal tissues were made of cells.
His conclusion was that all animals have cells.
neurons
schwann cells