The lacrimal bone is the smallest and most fragile bone of the face; roughly the size of the little fingernail. It is situated at the front part of the medial wall of the orbit.It has two surfaces and four borders.Several bony landmarks of the lacrimal bone function in the process of lacrimation or crying.n early lobe-finned fishes and ancestral tetrapods, the lacrimal bone is a relatively large and robust bone, running from the orbit to the nostrils. It forms part of the side of the face, between the nasal bones and the maxilla.
Medical Definition of spinocerebellar. : of or relating to the spinal cord and cerebellum spinocerebellar degeneration.
Nicotinic acetylcholine receptor (nAChR) modulation is an area with significant promise for future antidepressant drug development. The nAChR literature builds upon studies from the 1970s that advanced a cholinergic theory of depression, in which excessive cholinergic signaling could lead to depressive symptoms.