Extrafusal muscle fiber Extrafusal muscle fiber Extrafusal muscle fibers are the skeletal standard muscle fibers that are innervated by alpha motor neurons and generate tension by contracting, thereby allowing for skeletal movement. They make up the large mass of skeletal muscle tissue and are attached to bone by fibrous tissue extensions (tendons). Each alpha motor neuron and the extrafusal muscle fibers innervated by it make up a motor unit. The connection between the alpha motor neuron and the extrafusal muscle fiber is a neuromuscular junction, where the neuron's signal, the action potential, is transduced to the muscle fiber by the neurotransmitter acetylcholine. Extrafusal
Dry As a Bone Dry As a Bone Dry as a Bone is the second EP by the American rock band Green River. It was released in July 1987 through Sub Pop Records. The EP features the band's first material with guitarist Bruce Fairweather, formerly of bassist Jeff Ament's previous band, Deranged Diction. In June 1986, the band began production on its second EP with local producer Jack Endino at Reciprocal Recording in Seattle, Washington. Green River chose to record "Dry as a Bone" for Bruce Pavitt's new label, Sub Pop Records. However, Pavitt couldn't afford to release it until the following year, and,