Male Reproduction Tract Cainine at Keele University | Flashcards & Summaries

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3 stages of spermatogenesis
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1.Spermatocytogenesis 
2. Spermiogenesis 
3. Spermination 
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Sperminogenesis
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  • Differentiation into mature spermatids, which are released into the lumen of the seminiferous tubules as spermatozoa (sperm)
differentiation to spermatozoa  
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Structure of epididymis:
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- runs dorsal aspect testis 
-  Fixed to the testicles  at the tail end and to the surrounding vaginal tunic and spermatic fascia  ligaments 
-contains smooth muscle peristalsis rhythmic movement move from head to tail 
-  Attached to the urethra via vas deferens
  • head (caput)
  • body (corpus)
  • tail (cauda)
epididymal transport takes 12 days dog 


Lösung ausblenden
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Spermatogensis 
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Process of germ cell development from spermatogonia to spermatozoa 
  • occurs convoluted part seminiferous tubules 
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Spermatocytogenesis 
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  • Stem cell spermatogonia on BM of seminiferous tubules multiply via mitosis to maintain original stem cell number 
  • Also produce spermatocyte , which undergo meiosis to produce 2ry spermatocytes and haploid spermatids which guarantees genetic diversity when join female 
meiosis, meiosis 
spermatogonia - spermatocytes - haploid spermatids 
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Function of accessory sex glands 
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Contribute to fluid that completes semen and support the sperm 
-vary between species 
-only accessory sex gland in dogs = prostate 
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Testes 
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Produce sperm and synthesis and secrete androgens ( hormones)
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Function: Epididymis, ductus (vas) deferens, male urethra 
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Transport of spermatozoa 
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Preputial orifice 
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External opening of the prepuce 
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Function of  epididymis:
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  • Storage and maturation of spermatozoa 
  • provides environment to achieve motility and maturation therefore fertility 
  • stores sperm till ready be used 
  • Sperm concentration 
  •  Sperm transport 
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Fornix
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Where the skin meets the internal surface of the glans penis forming a pocket 
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Prepuce 
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  • Outer layer is Skin surrounding penis . Inner layer made up thin stratified spurmus epithelium 
  • a tubular fold of integument with some prepusal glands 
  • continous with skin of the ventral abdomen 
  • extends fornix where it  meets the smooth internal surface 
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Q:
3 stages of spermatogenesis
A:
1.Spermatocytogenesis 
2. Spermiogenesis 
3. Spermination 
Q:
Sperminogenesis
A:
  • Differentiation into mature spermatids, which are released into the lumen of the seminiferous tubules as spermatozoa (sperm)
differentiation to spermatozoa  
Q:
Structure of epididymis:
A:
- runs dorsal aspect testis 
-  Fixed to the testicles  at the tail end and to the surrounding vaginal tunic and spermatic fascia  ligaments 
-contains smooth muscle peristalsis rhythmic movement move from head to tail 
-  Attached to the urethra via vas deferens
  • head (caput)
  • body (corpus)
  • tail (cauda)
epididymal transport takes 12 days dog 


Q:
Spermatogensis 
A:
Process of germ cell development from spermatogonia to spermatozoa 
  • occurs convoluted part seminiferous tubules 
Q:
Spermatocytogenesis 
A:
  • Stem cell spermatogonia on BM of seminiferous tubules multiply via mitosis to maintain original stem cell number 
  • Also produce spermatocyte , which undergo meiosis to produce 2ry spermatocytes and haploid spermatids which guarantees genetic diversity when join female 
meiosis, meiosis 
spermatogonia - spermatocytes - haploid spermatids 
Mehr Karteikarten anzeigen
Q:
Function of accessory sex glands 
A:
Contribute to fluid that completes semen and support the sperm 
-vary between species 
-only accessory sex gland in dogs = prostate 
Q:
Testes 
A:
Produce sperm and synthesis and secrete androgens ( hormones)
Q:
Function: Epididymis, ductus (vas) deferens, male urethra 
A:
Transport of spermatozoa 
Q:
Preputial orifice 
A:
External opening of the prepuce 
Q:
Function of  epididymis:
A:
  • Storage and maturation of spermatozoa 
  • provides environment to achieve motility and maturation therefore fertility 
  • stores sperm till ready be used 
  • Sperm concentration 
  •  Sperm transport 
Q:
Fornix
A:
Where the skin meets the internal surface of the glans penis forming a pocket 
Q:
Prepuce 
A:
  • Outer layer is Skin surrounding penis . Inner layer made up thin stratified spurmus epithelium 
  • a tubular fold of integument with some prepusal glands 
  • continous with skin of the ventral abdomen 
  • extends fornix where it  meets the smooth internal surface 
Male reproduction tract cainine

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