Podcast
Questions and Answers
At what week in utero are primitive gonads formed?
At what week in utero are primitive gonads formed?
- Week 7
- Week 5 (correct)
- Week 4
- Week 6
Which duct develops into male reproductive organs under the influence of testosterone?
Which duct develops into male reproductive organs under the influence of testosterone?
- Paramesonephric duct
- Wolffian duct (correct)
- Ectodermal duct
- Mullerian duct
During which week does gonadal tissue differentiate into ovaries in the absence of testosterone?
During which week does gonadal tissue differentiate into ovaries in the absence of testosterone?
- Week 8
- Week 7
- Week 10 (correct)
- Week 9
What is the main function of obstetrics?
What is the main function of obstetrics?
What causes the penile tissue to elongate in males during intrauterine development?
What causes the penile tissue to elongate in males during intrauterine development?
What does the term 'gynecology' refer to?
What does the term 'gynecology' refer to?
By which week do external genitals begin to be visible?
By which week do external genitals begin to be visible?
From which Greek word is the term 'obstetrics' derived?
From which Greek word is the term 'obstetrics' derived?
What do gonads produce?
What do gonads produce?
What is the primary concern of pediatrics?
What is the primary concern of pediatrics?
Study Notes
Reproductive Development
- Sex is determined at the moment of conception.
- Primitive gonads are formed by week 5 in utero, producing sex cells in the ovaries and testes.
Development of Reproductive Organs
- At week 7-8, gonadal tissue differentiates into:
- Primitive testes in males, producing testosterone, which influences the development of the mesonephric duct (Wolffian) into male reproductive organs.
- Ovaries in females, with the paramesonephric duct (Müllerian) developing into female reproductive organs.
- Oocytes are formed in females by week 7-8.
External Genital Development
- By week 12, external genitals begin to be visible.
- In males, testosterone causes:
- Penile tissue to elongate.
- The urogenital fold on the ventral surface of the penis to close, forming the urethra.
Key Terms and Definitions
Medical Branches
- Obstetrics: the branch of medicine dealing with the care of women during pregnancy, labor, and post-childbirth recovery.
- Gynecology: the study of female reproductive organs and diseases.
- Andrology: the study of male reproductive organs.
- Pediatrics: the branch of medicine concerned with children and their illnesses.
- Neonatology: the branch of medicine concerned with the development and disorders of newborn babies.
Reproductive Health
- Sexual Health: a state of physical, emotional, and psychological well-being, beyond just the absence of disease or dysfunction.
- Gonad: a body organ producing cells necessary for reproduction (ovary in females, testis in males).
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Description
Learn about the formation of reproductive organs and sex determination in utero, from week 5 to week 7-8 of development.
