What do the terms 'scapula' and 'sclera' have in common?

The two terms 'scapula' and 'sclera' share a commonality in that both are names of anatomical structures in the body. The scapula is commonly known as the shoulder blade, a flat bone that connects the humerus (upper arm bone) with the clavicle (collarbone), playing a vital role in upper body movement. The sclera, on the other hand, is the white outer layer of the eyeball, providing protection and structural support to the eye. Focusing on the aspect that both are anatomical structures highlights their defining characteristic in the study of human biology and anatomy.

The other options represent concepts that do not apply to both terms. While the sclera is indeed a part of the eye, the scapula is not related to any structures within the eye. Similarly, while both terms could tangentially relate to muscles in different contexts—such as muscles attached to the scapula for shoulder movement—only one is directly associated with muscular anatomy, dismissing this as a commonality. Blood circulation does not pertain to either structure directly, further asserting that the correct answer relates to their status as anatomical terms.