Flashcards in Testis Histology Deck (32):
What tissue layer separates the lobules of the testis?
What is the sac surrounding the anterior/lateral parts of the testis called?
What type of tissue makes up the visceral tunica vaginalis?
simple cuboidal epithelium
What tube system makes up the testicular lobules?
What are the supporting cells of the seminiferous tubules called?
What are the germ cells which are always associated with the basal lamina called?
What is the process of spermatogenesis starting with the spermatogonium?
Spermatogonium (Dark A, Pale A, B)
Which germ cell do you almost never see on a slide?
What are the three types of spermatogonia?
Which spermatogonia can self renew?
Pale type A spermatogonia
Which are the largest of the germ cells?
What stage of development do primary spermatocytes enter? Secondary spermatocytes?
Primary: Meiosis I
Secondary: Meiosis II
At what point do the germ cells become haploid?
What is the structure that is left behind by Spermiogenesis called?
What are the three main structures of a sperm?
Head, middle piece, principle piece
What are the four "phases" of spermiogenesis?
What are formed in the golgi phase?
What forms the cap over the spermatid nucleus?
Acrosomal vescile (formed from acrosomal granules)
In what phase does the acrosomal vesicle fuse?
During which phase does the head of the spermatid orient toward the base?
Where do mitochondria aggregate in the acrosomal phase?
What structures are indicated in helping nuclear elongation of hte sperm?
During which phase are the sperm released into the lumen, with the residual bodies phagocytosed?
What is thought to be the role of the annulus in the sperm?
Keep the mitochondria in the middle piece
What is the immunologic role of sertoli cells?
Zonula occludens in base form blood-testis barrier
What are the two compartments formed by the blood-testis barrier in the seminiferous tubules?
What two endocrine proteins are produced by sertoli cells?
Androgen binding protein
What is the role of the interstitial cells of Leydig?
What cytoplasmic structures are prevalent in Interstitial Cells?
Large, round nuclei
Which cells have receptors for LH?
Which cells have receptors for FSH?