Bucket organ
The Eimersche organ is a by Theodor Eimer called sensor system of the mole , with this not only touch stimuli, but also electrical stimuli can perceive. This means that the weak electrical fields that arise when the prey animals move around their muscles can also be felt.
description
On the skin of the hairless nose of the mole there are regularly arranged, individually protruding papillary bodies . Each of these contains an epithelial cone , which is supplied by two different nerves, as well as three to five Merkel cell receptors and free nerve fibers. In the middle of each epithelial cone runs a somewhat stronger nerve fiber, about 2.5 μm in diameter, the circumference of which is surrounded by about 20 thinner nerve fibers 1.0-1.5 μm in diameter, which are oriented at right angles to the skin surface and with a button-like extension end up.
Individual evidence
- ^ Z. Halata: Innervation of the hairless nasal skin of the mole (Talpa europaea) . In: Journal for Cell Research and Microscopic Anatomy . tape 125 , no. 1 , March 1972, p. 108-120 , doi : 10.1007 / BF00306843 .