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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Interstitial tissue
The spaces between the seminiferous tubules in the testis are filled with accumulations of |
Loose CT
nerves blood lymphatic vessels |
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Interstitial tissue seminiferous tubules in the testis
connective tissue consists of various cell types, including |
fibroblasts
undifferentiated connective cells mast cells macrophages |
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Interstitial tissue seminiferous tubules in the testis
Containing- The cells have a central |
nucleus
eosinophilic cytoplasm rich in small lipid droplets. |
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Interstitial tissue seminiferous tubules in the testis
These are interstitial or Leydig’s cells of testis, which have the characteristics of |
steroid secreting cells
(smooth E.R). |
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Interstitial tissue seminiferous tubules in the testis
Cytoplasmic inclusions, the |
crystals of Reinke
(characteristic feature in humans) |
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Leydig’s cells
These cells produce = |
testosterone
responsible for the development of the = |
secondary male characteristics
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Leydig’s cells
These cells are stimulated to produce the androgens by = |
interstitial cell-stimulating hormone (ICSH)
(luteinizing hormone (LH)) Produced by: anterior lobe of the pituitary = |
anterior lobe of the pituitary,
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Leydig’s cells
In the fetus, the chorionic gonadotropins from the placenta stimulates the interstitial cells of the testis to produce testosterone, which is important in the |
development of male genitalia
and suppression of female genitalia formation. |
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Leydig’s cells
In the fetus, the chor testosterone is responsible for the growth, development and maintenance of the = 5ct |
accessory male sex organs
prostate seminal vesicles bulbourethral glands penis |
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testosterone is also responsible for the secondary sexual changes that occur at puberty, including =
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facial hair
axillary hair pubic hair enlargement of the larynx musculoskeletal growth |
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Histophysiology of testis
Temperature is very important in the regulation of spermatogenesis below = |
37oC.
Testicular temperature is about = pampiniform plexus and forms a = |
35oC
countercurrent heat exchange system |
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Malnutrition, alcoholism and the action of certain drugs lead to alterations in spermatogonia, with consequent =
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decreased production of spermatozoa.
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