Question

The head of the epididymis at the head of the testis is called ________.
A. Cauda epididymis
B. Vas deferens
C. Caput epididymis
D. Gubernaculum

Answer 1

Hint: Epididymis is a part of the male reproductive system that is a tightly, narrowly-coiled tube that connects efferent ducts from the testes to vas deferens. It is mainly divided into head, body and tail regions.

Complete step by step answer: The epididymis is a narrow tube that connects the efferent ducts from the testis to the vas deferens and the head part of the epididymis called the caput epididymis. It receives the spermatozoa from the mediastinum of the testis via the efferent tubules. Caput epididymis is a thick epithelium with stereocilia and smooth muscles located on the superior pole of the testis that allows the storage of sperm for maturation. The body part of the epididymis is called the corpus epididymis and it consists of an intermediate epithelium and a smooth muscle thickness. It is a highly convoluted duct that connects the head and the tail of the epididymis. The tail part of the epididymis is called the cauda epididymis. It has a very thin epithelium but has a higher number of smooth muscles that are continuous with the deferent duct.
i. Vas deferens is a part of the male reproductive system. These are two ducts that are a partially coiled tube existing from the abdominal cavity through the inguinal canal and allows the transport of sperm from the epididymis to the ejaculatory ducts, that is formed by connecting the left and right epididymis with the seminal vesicles.
ii. Gubernaculum is present in both males and females that connects the caudal ends of the gonads and epididymis. It is an elongated fibroid conical structure that comprises the oose extracellular matrix and mesenchymal cells.
Hence, the correct answer is option C.

Note: The epididymis is covered by two layers of pseudostratified epithelium and has principal cells, basal cells, apical cells, clear cells, intraepithelial lymphocytes and intraepithelial macrophages and out of which apical cells are mainly present in the head region of the epididymis.