The largest oil spill to occur in the United States so far was the Exxon Valdez spill into Prince William Sound, Alaska, in March 1989. The Exxon Valdez, a medium-sized oil tanker, ran aground on a reef to cause this spill of almost 11 million gallons of crude oil.
Sphincters, composed of skeletal muscles, regulate movement through our digestive and urinary systems, thus, controlling swallowing, defecation and even urination. Skeletal muscle contraction generates heat, which helps to maintain body temperature.
by Mary Shomon. While not generally well-known or understood, hypothyroidism and hyperthyroidism can cause a variety of muscle or joint-related symptoms. Both hypothyroidism and hyperthyroidism are known to cause what are called myopathies -- the medical term for diseases that affect skeletal muscle.Skeletal muscles are the muscles connected to your bones. An example of a skeletal muscle is your biceps in the upper arm, or the quadriceps in the thigh.oth hypothyroidism and hyperthyroidism are known to cause what are called myopathies -- the medical term for diseases that affect skeletal muscle. Skeletal muscles are the muscles connected to your bones. An example of a skeletal muscle is your biceps in the upper arm, or the quadriceps in the thigh.