The hollow part of an organ or body structure is called the _____ of the organ.
A) cortical part
B) lumen
C) medullary part
D) apical part

Question

Quizplus · Accepted Answer

The lumen refers to the hollow part or cavity of an organ or body structure, such as the interior of a blood vessel or the center of a tubular organ. The other choices refer to specific parts or regions of an organ and do not necessarily indicate a hollow space.

The Hollow Part of an Organ or Body Structure Is