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.
Sarcomere. The sarcomere is the unit of the contractile system of muscles found in the myofibrils, and consists of actin and myosin arranged in transverse bands. From: Canine Rehabilitation and Physical Therapy (Second Edition), 2014. Related terms: Nucleus (neuroanatomy) Myosin; Myocyte; Troponin; Hypertrophy; Myopathy; T-tubule; Cardiac muscle cell; Skeletal muscle