Template:BGDB Sexual Differentiation - Postnatal Interactive

From Embryology

Postnatal Interactive Component

Attempt the Quiz - Postnatal  
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Here are a few simple Quiz questions that relate to Postnatal development from the lecture and practical.

1

At about postnatally 2 months of age, in the male gonad primordial germ cells (gonocytes) are replaced by:

  adult dark spermatogonia
  adult pale spermatogonia
  spermatogonial stem cells
  primary spermatocytes

2

Precocious puberty, premature development of the signs of puberty, occurs at different ages for each sex. Which of the following about the ages of precocious puberty is not correct:

  precocious puberty can occur in girls before age 7
  precocious puberty can occur in girls before age 8
  precocious puberty can occur in boys before age 9
  precocious puberty can occur in boys before age 14

3

Puberty can occur over a broad range of time and differently for each sex. Which of the following are considered the normal age ranges for puberty.

  girls - age 7 to 13
  girls - age 9 to 15
  boys - age 7 to 13
  boys - age 9 to 15

4

Hypothalamic expression of gonadotropin releasing hormone (GnRH) is a known puberty trigger. Which of the following factors is thought to initiate the GnRH secretion?

  kisspeptin
  luteinizing hormone
  thyroid hormone
  anti-Müllerian hormone

5

Tanner stages (tanner scale) are an anatomical staging system for measuring male/female sexual development at puberty. How many discrete stages are there in this scale?

  3
  4
  5
  6
  none of the above

6

The Tanner stages (tanner scale) are an anatomical staging system and can also be used for determining the age of puberty.

  true
  false


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Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio


Additional Information: neonatal | kisspeptin | puberty | precocious puberty | delayed puberty | testis | spermatogonia | ovary | menstrual cycle | Tanner stages