PLACE OF SPERM PRODUCTION FULL
The word diploid means that the cells contain the full set of chromosomes in This is because spermatogenesis involves the process of meiosis,Ī type of cell division that halves the genetic material of cells.
The cells closer to the lumen, the spermatids and mature sperm cells,Īre haploid (n). Seminiferous tubule, the spermatogonia, are diploid (2n),Ĭells. You may notice from Figure 3 that the outer cells in the epithelium of the Testes and ovaries that differentiate to form haploid (n) Primary germ cells are undifferentiated diploid (2n) Key Term: Primary Germ Cells (Primordial Germ Cells) Spermatogenesis overall converts diploid primary germ cells into haploid mature Stages progress as you move inwards toward the lumen of the tubule.
Spermatogenesis are located on the outer region of the seminiferous tubule, and the Seminiferous tubule under a microscope, you will be able to see cells at eachĭifferent stage of spermatogenesis. Seminiferous tubules tell the story of sperm production. Therefore, the cell that secretes testosterone is an interstitial cell, Located within the seminiferous tubules themselves, so these must be theĬlusters of round cells between the central seminiferous tubule and the Of development, with Sertoli cells between them. Is a seminiferous tubule, which consists of many cells at various stages Spermatogenesis and various other processes that aid it, such as fluid secretionīy looking at the diagram, we can see that the large structure at the center Testosterone plays an important role in the completion of meiosis in Leydig cells are responsible for producing and secreting the A specific example of these interstitial cells in the testes is Some interstitial cells are interspersed between the seminiferous tubules in Interstitial cells can be located in various regions of the body. Which secrete fluids to nourish and support the developing sperm cells. The seminiferous tubules also contain Sertoli cells, Spermatogenesis, and it functions to convert diploid primary germ cells into The seminiferous tubules make up the bulk of the testes in male humans andĪre the location of sperm production. Identify the cell that secretes testosterone. That you get when you slice across something at a right angle to its vertical
Transverse means “across.” A transverse section is the view Section describes a way of viewing part of a specimen or body part. Other seminiferous tubules around the perimeter of the micrograph. The micrograph below in Figure 2 shows a magnified transverse section (TS) of a testis,ĭisplaying a seminiferous tubule in the center. Sperm cells are oftenĮjaculated into a female’s vagina, where they can swim toward the egg
Sperm are ejaculated out of the male’s body. The vasĭeferens then transports the sperm cells to the urethra, at the end of which Sperm cells are transferred from the epididymis to the vas deferens. Responsible for storing sperm cells until they are required. The epididymis, whose location is also shown in Figure 1, is The lumen is used to transport mature sperm cells to theĮpididymis. The site of spermatogenesis, where primary germ cells can develop into matureĮach seminiferous tubule is a tube-like structure with a channel and a centerĬalled the lumen. Seminiferous tubules are coiled tubes located throughout the testes, which are
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