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.
Definition of anatomy for English Language Learners. 1  biology : the study of the structure of living things. : 2  the parts that form a living thing (such as an animal or plant) : 3  a person's body.