What term describes an imaginary line drawn on the skin indicating the location of underlying structures?

The term "linear guide" refers to an imaginary line drawn on the skin that serves to indicate the location of underlying anatomical structures such as vessels and nerves. This concept is particularly important in the fields of anatomy and embalming, as it helps practitioners identify where to make incisions or how to navigate around certain structures during procedures.

In practice, linear guides are used to provide a visual pathway for locating deeper anatomical features without the need for invasive techniques. For example, when preparing for embalming or dealing with autopsy procedures, identifying the correct position of arteries and veins through linear guides can significantly enhance precision and effectiveness.

Other terms in the list do not accurately encapsulate the role of this imaginary line. "Surface marker," while related, is more vague and does not specifically imply a guiding aspect related to anatomical structures. "Guide line" is somewhat general and lacks specificity in the context of anatomy. "Cuts line" is not a recognized term in this context, making it less applicable. Thus, "linear guide" is the most accurate term to describe the intended function.