Certified Paraoptometric (CPO) Practice Exam 2025

In anatomical terminology, 'superior' refers to a position that is situated above another structure or directed upward. This term is commonly used in various fields of biology and medicine to specify locations in relation to the body or specific organs. For instance, in describing the human body, the head is considered superior to the torso because it is positioned above it.

The other options do not accurately define 'superior.' The first option, which means 'situated below,' refers to the opposite of superior. The second option's definition of 'located at or directed downward' also contradicts the meaning of superior. The fourth option, concerning proximity to the optical nerve head, does not align with the general anatomical definition of superior and is too specific to a particular context without addressing the directional terminology.