Final answer:
The 'back corner of the jaw' refers to the area where wisdom teeth are located. The term 'obtuse' is not typically used to describe this part of the jaw. Wisdom teeth are the most posterior and are sometimes removed through orthodontic surgery if impacted.
Step-by-step explanation:
The question 'For whom is back corner of the jaw is obtuse?' seems to be referring to the angle of the jaw in relation to the teeth located at the rear of the mouth. In humans, this area typically hosts the molars, which are designed to crush food in preparation for swallowing. The most posterior teeth in the human jaw are the wisdom teeth, which emerge in early adulthood, and they are the ones located at the 'back corner of the jaw.' The term 'obtuse' often refers to an angle greater than 90 degrees, but this isn't a usual term when describing the jaw. Generally, concerns about the angle of the jaw or its shape relate to orthodontic evaluation and any necessary treatment, rather than to normal function or anatomy.