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Question
Identify the parts labelled A-F and select the correct option.
Identify the parts labelled A-F and select the correct option.
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Solution
The correct option is B A -Vas deferens, B- Caput epididymis, C- Rete testis, D- Corpus epididymis, E- Cauda epididymis, F- Seminiferous tubules
Vas deferens: Duct arising from the epididymis, ascends to the abdomen and loops over the urinary bladder.
Epididymis: It is a tightly coiled structure, located along the inner side of the testis. It serves as a site for sperm maturation and storage. It is divided into a head (caput), a body (corpus) and a tail (cauda).
The caput, or head, is where sperm enters the epididymis from the testes. At this stage, sperms are not motile. The corpus, or body, is where sperms begin to gain their motility.
The cauda, or tail, is where sperms are stored for up to a few days.
Seminiferous tubules: These coiled and twisted, curved ducts in each lobule of the testis in which spermatozoa develops. They are lined by epithelial cells including spermatogonial stem cells that undergo mitosis, followed by meiosis, to produce sperm cells. At certain places, supportive Sertoli cells are also present. Sertoli cells are tall, columnar, striated, supportive cells of the seminiferous tubules of the testis, to which spermatids attach for nourishment during spermatogenesis.
Vas deferens: Duct arising from the epididymis, ascends to the abdomen and loops over the urinary bladder.
Epididymis: It is a tightly coiled structure, located along the inner side of the testis. It serves as a site for sperm maturation and storage. It is divided into a head (caput), a body (corpus) and a tail (cauda).
The caput, or head, is where sperm enters the epididymis from the testes. At this stage, sperms are not motile. The corpus, or body, is where sperms begin to gain their motility.
The cauda, or tail, is where sperms are stored for up to a few days.
Seminiferous tubules: These coiled and twisted, curved ducts in each lobule of the testis in which spermatozoa develops. They are lined by epithelial cells including spermatogonial stem cells that undergo mitosis, followed by meiosis, to produce sperm cells. At certain places, supportive Sertoli cells are also present. Sertoli cells are tall, columnar, striated, supportive cells of the seminiferous tubules of the testis, to which spermatids attach for nourishment during spermatogenesis.
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