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/Rehab Doll Dry as a Bone/Rehab Doll Dry as a Bone/Rehab Doll is a compilation album by the American rock band Green River. It was released on September 13, 1990 through Sub Pop Records. Released in 1990 by Sub Pop Records, the album combines Green River's two releases for the label: "Dry as a Bone" (1987) and "Rehab Doll" (1988). It also includes the bonus tracks "Ain't Nothing to Do" (recorded in 1985), "Searchin'" (recorded in 1986), and "Queen Bitch" (recorded in 1987). Steve Huey of AllMusic said, "Since "Dry as a Bone/Rehab Doll" is more energetic and less murky than many