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22 Cards in this Set
- Front
- Back
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What is the CT that surrounds the testis, comes from the abd. cavity peritoneum?
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tunica vaginalis
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what is the CT that divides the testi into Lobuli, and surrounds a group of seminferous tubules?
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Tunica albuginea
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What 3 things does the spermatic cord contain?
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test. artery, vein and vas defrens
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where do the seminefeours tubes all meet together?
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rete testis
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What keeps the testes cold?
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countercurrent heat exchange...heat from the test. artery moves to the test. vein because thestes are outside the body
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What are the endocrine cells of the testes?
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leydig
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what are the excocrine cells of the testes?
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germ, sertoli
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what creates the blood-testes barrier?
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sertoli cell
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what are the 4 functions of sertoli cell?
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create blood test barrier
provide nutrients make androgen binding protein phagocytize cytoplasm |
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what is the funciton of leydig cell?
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synthesize androgen
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what surrounds a seminferous tube and provides blood supply?
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tunic vasculosa
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what separtes a seminf. tube from another?
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tunica propria
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Sertoli cell synthesizes what steroids?
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nONE
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sertoli cell synthesoizes what peptides?
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Antimillerian hormone
inhibin FRUCTOSE rich environment Transferrin |
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what does testicular transferrin do? what makes it?
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sertoli cell makes it
it accepts Fe from Serum transferrin, for the gametes |
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what does antimillerian hormone do? what makes it?
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sertoli cell makes it, it helps develop the reproductive tract
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whta type of cell remains after mitosis?
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a primary spermatocyte, with 4n
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What kind of hormone is androgen? what secretes it?
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leydig, it is a C-19 steroid
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what are the 2 androgens?
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testosterone, and androstenedione
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What binds androgens? why are they important?
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SHBG (sex hormone binding globulin) it is large, so androgens aren't secreted into urine
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a - sertoli cells
b - spermatogonia c - spermatocytes d - limiting membrane e -spermatids |
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a - 2n primordial germ
b - 2n spermatogonium c - 4n d - serpmatogonia 2n e - 2n spermatogonia (end of mit) f - 4n primary spermatocyte g - 2n secondary spermatocyte h - 1n spermatid |
