Question

Where do the partitions of Testis develop from?
A) Tunica albuginea
B) Tunica vasculosa
C) Tunica vaginalis
D) Rete testis

Answer 1

Hint: Anatomy of testis and formation of the male reproductive organ gives insight about the various partitions and tissues comprising it.

Complete answer:
1) Tunica albuginea is the fibrous enfolding. It is a bi-layered structure that includes an outer longitudinal layer and an inner circular layer.The tunica albuginea also extends into the testis, creating partitions between seminiferous tubules where sperm is produced.
2) Tunica vasculosa is a type of vascular layer of the testis, consisting of blood vessels, inter joined by areolar tissue. It covers the inner surface of the tunica albuginea and the different septa in the interior of the gland and forms an internal enclosing to all the spaces of which the gland is composed.
3) Tunica vaginalis is the pouch of serous membrane that covers the testes. It is derived from the vaginal process of the peritoneum. The tunica vaginalis is said to consist of two layers, the parietal and visceral laminae, although in truth, they form one seamless sheet. The visceral layer covers the tunica albuginea of the testis, whilst the parietal level is reflected onto the scrotum, covering its inner surface.
4) Rete testis is a network of small tubes in the testicle that helps move sperm cells (male reproductive cells) from the testicle to the epididymis (in a detailed way – it carries sperm from the seminiferous tubules to the efferent ducts). The epididymis is where the sperm mature and are stored.

Thus, the correct answer is option A (Tunica albuginea).

Note:The word “Tunica” means a membranous sheath enveloping or lining an organ. They are used for enveloping and/or partitioning cells or tissues.