Given names often turned into family names when people were identified by their father's name. For example, the first name Ahrend developed into the family name Ahrends by adding a genitive s-ending, as in Ahrend's son. Examples: Ahrends, Burkhard, Wulff, Friedrich, Benz.
crouching involves lowering the head and shoulders. Please explain in detail how one does this as you see it, including what is happening to the knees and hips. --Penbat (talk) 20:50, 14 July 2010 (UTC)
A person in the Trendelenberg position is lying supine with their head slightly lower than their feet. Abduction is movement away from the midline, or to abduct. Adduction is movement toward the midline, or to add. Flexion is to bend at a joint, or to reduce the angle.