Types of Sex
Über den Vortrag
Der Vortrag „Types of Sex“ von Lynae Brayboy, MD ist Bestandteil des Kurses „Year 4 – Selective Sub-Internship“.
Quiz zum Vortrag
Which of the following dictates the determination of gonadal sex (testes, ovaries) in an individual?
- Genetic sex (XX, XY)
- Hormone production during fetal development
- Hormone production during puberty
- Gender identity
- None of the options are correct
Which of the following is TRUE regarding genetic sex determination?
- SRY down-regulates Wnt4 and Rspo1.
- SRY down-regulates SOX 9 and Fgf9.
- SRY acts on the granulosa cells.
- XX acts on sertoli cells.
- XX up-regulates SOX9 and FGF9.
Which of the following correctly describe the mechanisms involved in the formation of the male phenotype?
- Wnt 4 - down-regulated in Sertoli cells Rspo1 - down-regulated in Sertoli cells Sox9 - up-regulated in Sertoli cells Fgf9 - up-regulated in Sertoli cells
- Wnt 4 - down-regulated in Sertoli cells Rspo1 - up-regulated in Sertoli cells Sox9 - up-regulated in Sertoli cells Fgf9 - down-regulated in Sertoli cells
- Wnt 4 - up-regulated in Sertoli cells Rspo1 - up-regulated in Sertoli cells Sox9 - down-regulated in Sertoli cells Fgf9 - down-regulated in Sertoli cells
- Wnt 4 - up-regulated in Sertoli cells Rspo1 - down-regulated in Sertoli cells Sox9 - down-regulated in Sertoli cells Fgf9 - up-regulated in Sertoli cells
- Wnt 4 - down-regulated in Sertoli cells Rspo1 - up-regulated in Sertoli cells Sox9 - down-regulated in Sertoli cells Fgf9 - up-regulated in Sertoli cells
When does development of the follicles occur in the oogonia of a fetus?
- 20 weeks gestation
- 14 weeks gestation
- 24 weeks gestation
- 32 weeks gestation
- 8 weeks gestation
Which of the following statements is FALSE regarding sex determination of the fetus?
- The Leydig cells produce anti-Mullerian hormone.
- The paramesonephros helps in the formation of the fallopian tubes, uterus and upper one-third of the vagina in females.
- The mesonephros helps in the formation of external male genitalia.
- The glans penis in the females forms the clitoris.
- The DHT helps in the formation of the penis.
Which of the following statements is TRUE regarding the development of sexual organs?
- Spermatogenic cords are developed in the first trimester in males.
- Germ cell migration occurs in the 2nd trimester.
- Wolffian duct regresses during the development of male genitalia.
- Müllerian duct regresses in the formation of female genitalia.
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Dozent des Vortrages Types of Sex
Lynae Brayboy, MD
Dr. Lynae Brayboy is an Assistant Professor of Molecular Biology, Cell Biology and Biochemistry at Brown University, in Rhode Island, USA.
She obtained her MD from Temple University School of Medicine in Pennsylvania. Currently, she is double-board certified in OB/GYN, as well as Reproductive Endocrinology and Infertility, and is also Visiting (Reproductive) Scientist at the Charité Berlin.
Due to her achievements, she has earned multiple teaching awards.
Within Lecturio, Dr. Brayboy teaches courses on Gynecology.
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Inclusion of the "gender identity" update was unscientific and does not belong in a medical lecture.
This class was really hard to memorize for me, and to answer the questions even more. But the explanation was very clear thanks. After 3 times of repetition i was abble to answer the questions.
