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40 Cards in this Set
- Front
- Back
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From what if the tunica vaginalis derived? |
Processus vaginalis |
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Which layer of the tunica albuginea contains blood vessels? |
Tunica vasculosa in the inner, loose CT |
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What extends inwards to form septa in the testes? |
Tunica albuginea |
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How many seminiferous tubules are in each lobule? |
1-4 |
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Identify |
Seminiferous tubules |
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Identify arrow |
Leydig cells (Interstitial) |
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Where are myoid cells located? |
Tunica Lamina Propria |
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What do myoid cells do? |
Peristaltic contraction |
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What cells are found in the seminiferous epithelium? |
Sertoli cells and spermatogenic cells |
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What do Sertoli cells secrete? |
Inhibin --> inhibits FSH secretion Androgen bind protein --> binds testosterone |
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What makes up the blood-testis barrier? |
Sertoli cells' tight junctions |
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What do Leydig cells secrete? |
Testosterone |
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How many days does it take to go from spermatogonia to spermatozoa? |
~74 days |
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Spermatogenesis process |
Dark A spermatogonia --> Pale A spermatogonia --> Type B spermatogonia --> Primary spermatocytes --> secondary spermatocytes --> Spermatids --> Spermatozoa |
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Which sperm cells are diploid? |
Spermatogonia and primary spermatocytes |
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Which sperm cells are haploid? |
Secondary spermatocytes, spermatids and spermatozoa |
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Sertoli cell function |
Support, protect and nourish developing spermatozoa |
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What receptors do Leydig cells have? |
LH receptors |
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Identify arrow |
Sertoli cell |
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Idenitfy arrow |
Dark spermatogonia |
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Identify arrow |
Sertoli cell |
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Identify arrow |
Myoid cell |
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Identify arrow |
Primary spermatocyte |
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Identify arrow |
Spermatid |
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Identify arrow |
Spermatozoa |
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Rete testis epithelium |
Simple cuboidal to low columnar |
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Straight tubules epithelium |
Simple cuboidal with microvilli and flagella |
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What does the efferent ductule connect? |
Rete testis to epididymis |
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Efferent ductule epithelium |
Pseudostratified columnar Tall cells with cilia Short cells with microvilli |
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Identify |
Epididymis |
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Which duct/tubule contains smooth muscle? |
Epididymis |
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What do the principle cells of the epididymis secrete? Why? |
Glycerophosphocoline --> decapacitates sperm |
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Identify |
Epididymis (Notice smooth muscle) |
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Identify area |
Epididymis (Notice pseudostratifed columnar with stereo cilia) |
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Identify |
Vas Deferens (Notice three layers of smooth muscle) |
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What do the seminal vesicles secrete? |
Fructose and prostaglandins |
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Identify |
Seminal vesicle |
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Identify |
Seminal vesicle |
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Identify |
Prostate |
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What is the function of the blood-testis barrier? |
To protect spermatogenic cells from an autoimmune response |
