Elbow taken as six handbreadths; three to the elbow and three from the elbow to the shoulder. Another measure was the "cubit" (from "cubital"). This was taken to be the length of a man's arm from the elbow to the end of the middle finger. Though the elbow is similarly adapted for stability through a wide range of pronation-supination and flexion-extension in all apes, there are some minor differences. In arboreal apes such as orangutans, the large forearm muscles originating on the epicondyles of the humerus generate significant transverse forces on the elbow joint. The structure to resist these forces is
The finger as the "rigid digit" salute. It was used in a more jocular manner, to suggest an airman had committed an error or infraction; the term was a reference to British slang terms for inattentiveness (i.e. "pull your finger out (of your bum)"). The "order of the rigid digit" continued after the war as a series of awards presented by the veteran's association of the 91st, marked by wooden statuettes of a hand giving the single finger gesture. In 2005 during the war in Iraq, Gunnery Sergeant Michael Burghardt gained prominence when the Omaha World-Herald published a photo of Burghardt making