American Board of Pathology (ABPath) Practice Test 2025 - Free Pathology Exam Practice Questions and Study Guide

The septula testis are connective tissue extensions that project from the tunica albuginea, the tough fibrous layer surrounding the testes, into the testicular parenchyma, creating distinct lobules within the testis. Each septulum contains blood vessels and connective tissue, helping to support the structure of the testis, while also dividing it into compartments that house the seminiferous tubules responsible for sperm production.

Understanding the role of the septula testis is essential for recognizing how the testis is organized internally. They provide a structural framework that maintains the architecture of the testis and aids in the organization of the highly specialized seminiferous tubules. The other anatomical structures mentioned do not have a direct connection between the tunica albuginea and the testicular surface in the same manner that the septula testis do. For instance, the rete testis is involved in the transport of sperm but is not an extension from the tunica albuginea. The tunica vaginalis is a serous membrane covering the testis, while the efferent ductules connect the rete testis to the epididymis but also do not link directly to the tunica albuginea.