Patella has been rejected. Partite patellas occur almost exclusively in men. Tripartite and even multipartite patellas occur. The upper three-quarters of the patella articulates with the femur and is subdivided into a medial and a lateral facet by a vertical ledge which varies in shape. Four main types of articular surface can be distinguished: In the patella an ossification centre develops at the age of 3–6 years. The patella originates from two centres of ossification which unite when fully formed. The primary functional role of the patella is knee extension. The patella increases the leverage that the quadriceps tendon can exert
The Body Stealers The Body Stealers The Body Stealers, also known as "Thin Air", is a 1969 British science fiction film directed by Gerry Levy, about the disappearance of British armed forces paratroopers in mid-air whilst on a routine jump. Two investigators try to figure out what happened and uncover an alien plot to steal bodies of earthlings by snatching them out of the air. The film was also released as "Invasion of the Body Stealers". The Alien spacecraft is the Dalek saucer from the film "" "Britmovie" wrote, "This threadbare Anglo-American variation on the "Invasion of the Body Snatchers" theme sounds like