Talk:BGDB Sexual Differentiation - Quiz: Difference between revisions

From Embryology
 
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+ paramesonephric duct
+ paramesonephric duct
- urogenital sinus
- urogenital sinus


||Mullerian and paramesonephric duct are the same thing and the embryonic contributors to the female uterus and vagina development.
||Mullerian and paramesonephric duct are the same thing and the embryonic contributors to the female uterus and vagina development.
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||The adrenals, kidneys and gonads are initially closely related. Both the adrenals and kidneys are described as moving relatively as ascending, while the gonads (both ovary and testis) move away in relative descent.
||The adrenals, kidneys and gonads are initially closely related. Both the adrenals and kidneys are described as moving relatively as ascending, while the gonads (both ovary and testis) move away in relative descent.


{In the female fetus, the uterus develops  from the:
{The genital tubercle and inner genital folds form the same adult structures in both sexes.
|type="()"}
|type="()"}
+ Mullerian Duct
- true
- formation of the nucleus pulposis and separating cloacal and buccopharyngeal membranes
+ false
- gastrulation and neuralation
|| In the fetus, the genital tubercle and genital folds appear as the same external genital structures in both sexes and differentiate to form different adult structures.
- formation of the nucleus pulposis and intervertebral disc
|| The notochord has a mechanical role in how the embryonic disc folds and releases a signal (sonic hedgehog) that patterns surrounding tissues. The nucleus pulposis does form from the notochord (much later in embryonic development) but the notochord does not separate the cloacal and buccopharyngeal membranes or form the intervertebral disc (from sclerotome of somite). Gastrulation and neuralation, you were asleep in the practical class or checking your facebook status.


{Select the correct options below describing aspects of gonad development
|type="[]"}
- testis cortical and ovary medullary
+ ovary cortical and testis medullary
+ prenatal meiosis in the ovary germ cells
- prenatal meiosis in the testis germ cells
- prenatal mitosis  in the ovary germ cells


||Remember the anatomy of the adult gonads, with cortical primordial follicles in the ovary and medullary seminiferous tubules. The primordial germ cells in the testis form diploid spermatogonia that proliferate by mitosis and divide by meiosis postnatally. The primordial germ cells in the ovary form primordial oocytes that proliferate by mitosis and commence meiosis prenatally in the fetal ovary.


</quiz>
</quiz>

Latest revision as of 17:21, 2 June 2011

Here are a few simple questions that relate to your BGD practical, this page is not a part of today's Practical class. You should try in your own time after completing the Practical today.Take the quiz and see what you know, if you get some wrong, try working through through the 2010 BGD Practical - Fertilization to Implantation.

Take the Quiz

  

1 Sex determination occurs initially through the SRY transcription factor acting on:

primordial germ cells
anterior pituitary
testes support cells
ovary support cells
mesonephric duct cells

2 The lower end of the mesonephric duct branches to form the:

ureteric bud
uterus bud
urethral bud
gonadal bud
none of the above

3 The sequential development of the genital system can best be described as:

internal and external genital tract dependent upon primordial germ cell hormone secretion
gonadal differentiation and hormone secretion determining internal then external tract development
mesonephric duct hormone secretion forming genital ridge then internal and external tract development
internal tract determining gonadal then hormone secretion for external tract development
paramesonephric duct forming genital ridge then hormone secretion for internal and external tract development

4 The allantois, cloaca, hindgut and yolk sac are all lined with endoderm

true
false

5 The cells in the adult male and female gonad forming from equivalent primordial cells in each sex are:

Sertoli cells and thecal cells
Leydig cells and interstitial cells
primordial germ cells and oocytes
thecal cells and interstitial cells
ductus deferens and mesonephric ducts

6 Select the correct options below for the embryonic contribution to the female uterus and vagina

Wolffian duct
Utereric duct
Mullerian duct
paramesonephric duct
urogenital sinus

7 The relative movement of organs with the peritoneal cavity can best be described as:

descent of the adrenal glands and gonads
ascent of the adrenal glands and genital tubercle
ascent of the kidneys and descent of the gonads
descent of the kidneys and adrenal glands
none of the above

8 The genital tubercle and inner genital folds form the same adult structures in both sexes.

true
false

9 Select the correct options below describing aspects of gonad development

testis cortical and ovary medullary
ovary cortical and testis medullary
prenatal meiosis in the ovary germ cells
prenatal meiosis in the testis germ cells
prenatal mitosis in the ovary germ cells