Introduction to Human General Embryology Developmental Genetics



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Summary Notes in Gen Embryology
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Study Task

Comparatively, there are obvious differences between Spermatogenesis and Oogenesis. Of course there are similarities. Can you spot out these differences and similarities?


Note that the best way to establish comparative differences is to establish the feature for comparison e.g. the gonad involved, the pattern of meiotic division, the existing gender independence, duration of occurrence, eventual outcome etc.


For the similarities, features like number of chromosome, gamete abnormalities etc. should be considered.


Take note of the following of about the roles the different part of the female reproductive system plays:





  1. The Ovaries:

  1. For the development of the female gametes. This is associated with follicular development, development of corpus luteum, degeneration of corpus luteum to corpus albicans, and atretic changes (atresia).




  1. Secretion of oestrogen and progesterone (endocrine function)




  1. The Uterine Tubes:

  1. Gamete Transport

  2. Site of Fertilization

  3. Early development of the Zygote




  1. The Uterus:

a. Involved in the menstrual Cycle
b. Involved in embryo Implantation
c. Involved in embryo/fetus development


NB:
Recall that the female reproductive organs undergoes regular cyclic changes (structural and function) from puberty (menarche between 9 – 14 years of age) to menopause (climacteric; between 45 and 55 years of age)



  1. The Vagina:

  1. It is the corpulatory organ.

  2. Serves as the route for child birth (parturition).



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