The portion of the Sonora Desert which lies in the Southwestern United States is the most populated area within the region. Six of the top ten major population centers of the region are found within its borders: Phoenix, Tucson, Mesa, Chandler, Glendale, and Scottsdale, all in Arizona.
Insertion. Insertion. 1. (Science: anatomy) The place of attachment, as of a muscle to the bone which it moves. 2. (Science: genetics) a rare nonreciprocal translocation involving three breaks in which a segment is removed from one chromosome and then inserted into a broken region of a nonhomologous chromosome.
atrophic excavation cupping of the optic disk, due to atrophy of the optic nerve fibers. dental excavation removal of carious material from a tooth in preparation for filling. rectouterine excavation a sac formed by a fold of peritoneum dipping down between the uterus and rectum. rectovesical excavation the space between the rectum and bladder in the peritoneal cavity of the male. vesicouterine excavation the space between the bladder and uterus in the peritoneal cavity of the female.