Question

The part of the male reproductive system which connects testis with epididymis is?

Answer 1

Hint: They're fine ciliated ductules that arise from the seminiferous tubules of testis (where sperms are formed) and open into epididymis which is a mass of long narrow closely coiled tubule lying along the inner side of testis.

Complete answer:
The testis is the primary reproductive organ of the males. Each testis has 250 testicular lobules. Each lobule has 1-3 highly coiled seminiferous tubules. These seminiferous tubules open within the vasa efferentia by rete testis. The tubule opens into the epididymis which continues to make the vas deferens.
Vas deferens transfers the sperms mixed with semen to the duct. Vasa efferentia is the connecting link between testis and epididymis. It collects a duct from a seminal vesicle and opens within the urethra because of the duct. These ducts store and transport the sperms from the testis to the surface through urethra.

Additional information:
There are two fundamental outline for efferent ductule structure, which are-
a) Multiple entries within the epididymis, as seen in mainly large mammals. In humans and other large mammals, there are approximately 15 to twenty efferent ducts, which also occupy nearly one third of the top of the epididymis.
b) Single entry, as seen in most small animals like rodents, whereby the 3–6 ductules merge into one small ductule before entering the epididymis.

So the correct answer is Vasa efferentia.

Note:
The tubule is additionally referred to as efferent ducts or efferent ductules or ductuli efferentes or ductus efferentes. The ductuli are unilaminar and made up of columnar ciliated and nonciliated (absorptive) cells. The ciliated cells obey to stir the luminal fluids, possibly to assist make sure homogeneous absorption of water from the fluid produced through the testis, which ends up in a rise within the concentration of luminal sperm. The epithelium is surrounded by a band of smooth muscle that assists to propel the sperm toward the epididymis.