Accessory muscles are isointense to skeletal muscle on all pulse sequences and typically attach by muscular or tendinous insertions. Accessory muscles around the knee include the 3 rd head of the gastrocnemius, the accessory plantaris, the accessory popliteus, and the tensor fasciae suralis muscle.
Napster was founded by Shawn Fanning, John Fanning, and Sean Parker. Initially, Napster was envisioned as an independent peer-to-peer file sharing service by Shawn Fanning. The service operated between June 1999 and July 2001.
In 1961, SV40 was discovered by Dr. Bernice Eddy of the National Institute of Health, Division of Biologics when she took the material used to grow polio vaccines and injected it into hamsters. Tumors grew in the hamsters. Her discovery was subsequently validated by Drs. Maurice Hilliman and Benjamin Sweet of Merck.