BGDB Practical - Sexual Differentiation Interactive

Introduction

These are the interactive quizzes added to pages within the 2019 practical class.

Sex Determination Interactive Component

Attempt the Quiz - Sex Determination

Here are a few simple Quiz questions that relate to Sex Determination from the lecture and practical. 1 Sex determination occurs initially through the SRY transcription factor acting on the:   primordial germ cells   anterior pituitary   testes support cells   ovary support cells   mesonephric duct cells 2 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 3 The genes for testes-determining factors are located on the:   short arm of the Y chromosome   long arm of the Y chromosome.   short arm of the X chromosome   long arm of the X chromosome   both the X and Y chromosomes contain these genes 4 The protein product of the gene SRY acts as a   growth factor   endocrine factor   receptor protein   transcription factor Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio Additional Information: SRY | testis | sertoli cell

Early Embryo Interactive Component

Attempt the Quiz - Early Embryo

Here are a few simple Quiz questions that relate to Early Embryo from the lecture and practical. 1 The allantois, cloaca, hindgut and yolk sac are all lined with endoderm true false 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 renal structures within intermediate mesoderm can best be described as:   pronephros, metanephros, mesonephros   mesonephric duct, metanephros, mesonephros   pronephros, mesonephros, metanephros   mesonephric duct, paramesonephric duct, metanephros   uteric bud, ureter, urinary bladder 4 An embryo that contains the XX sex chromosomal complex. In the developing gonads:   its medullary region differentiates and its cortex regresses   its cortical region differentiates and its medulla regresses   the presence of an X influences medullary differentiation   neither the presence of the X chromosome nor absence of   the Y chromosome influences development of the ovaries   the SRY is expressed Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio Additional Information:

Late Embryo Interactive Component

Attempt the Quiz - Late Embryo

Here are a few simple Quiz questions that relate to Late Embryo from the lecture and practical. 1 The sex cords give rise to all of the following except:   Sertoli cells of seminiferous tubules   ovarian follicular cells   rete testes   straight tubules of testes   primordial germ cells 2 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 3 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 4 The mesenchyme of the genital ridge separating the seminiferous tubules gives rise to cells that secrete testosterone that binds to the receptors on the:   yolk sac   paramesonephric duct   mesonephric duct   metanephric blastema   ureteric bud Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio Additional Information: ovary | testis | testosterone | ureteric bud

Fetal Interactive Component

Attempt the Quiz - Fetal

Here are a few simple Quiz questions that relate to Fetal development from the lecture and practical. 1 Differentiation of the internal and external genital organs depends on the:  genetic makeup of the embryo  presence of gonads and their endocrine secretion  placental hormones  maternal hormones  all of the above 2 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 3 The genital tubercle and inner genital folds form the same adult structures in both sexes.   true   false 4 In a female fetus, the uterus develops from the:   mesonephric duct   paramesonephric duct   somatic pleura   urogenital sinus   endoderm 5 In the male fetus, descent of the testes is caused by all of the following except:   increased abdominal pressure   presence of gut in the processus vaginalis   enlargement of the inguinal canal by swelling of the gubernaculum   reduction and regression of the gubernaculum   straightening and lengthening of the body Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio Additional Information: adrenal

Postnatal Interactive Component

Attempt the Quiz - Postnatal

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 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

Abnormalities Interactive Component

Attempt the Quiz - Abnormalities

Here are a few simple Quiz questions that relate to Abnormalities of genital development from the lecture and practical. 1 In a genetic male (44 x XY) who lacks androgen receptors, each of the following will be increased except:   estradiol   FSH   LH   progesterone   testosterone 2 The best option below for a child born with ambiguous external genitalia could be:   46,XX DSD a female pseudohermaphrodite   46,XY DSD a male pseudohermaphrodite   Ovotesticular DSD   someone with Klinefelter’s syndrome   any of the above 3 In monosomy XO (Turner’s syndrome):   the children start normal male development   the number of germ cells in the gonads starts decreasing after puberty   the children grow disproportionately tall   an active gene on a dormant X chromosome may account for the clinical manifestations   all of the above might occur 4 If 46,XY DSD is due to androgen receptor disorders, then:   the testes are normal for the most part   the testosterone and DHT levels are normal   MDIF is secreted by the Sertoli cells   the fetus will have female external genitalia without a female genital tract   all of the above is correct 5 Failure of formation and migration of the primordial germ cells results in:   Turner’s syndrome   Klinefelter’s syndrome   46,XX DSD   gonadal agenesis   none of the above 6 Failure of the urethral folds to fuse prenatally would be expected to result in:   epispadias   exstrophy of urinary bladder   horseshoe kidney   hypospadias   multiple ureters Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio Additional Information: genital abnormalities

Genital Links: genital | Lecture - Medicine | Lecture - Science | Lecture Movie | Medicine - Practical | primordial germ cell | meiosis | Female | X | ovary | corpus luteum |oocyte | uterus | vagina | reproductive cycles | menstrual cycle | Male | Y | testis | spermatozoa | penis | prostate | endocrine gonad‎ | Genital Movies | genital abnormalities | Assisted Reproductive Technology | puberty | Category:Genital

Medicine Practicals 2019 Interactive: BGDA Fertilization to Implantation | BGDA Implantation to 8 Weeks | BGDA Neural | BGDA Fetal | BGDA Placenta | BGDB Gastrointestinal | BGDB Face Ear | BGDB Endocrine | BGDB Sexual Differentiation

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BGDB: Lecture - Gastrointestinal System | Practical - Gastrointestinal System | Lecture - Face and Ear | Practical - Face and Ear | Lecture - Endocrine | Lecture - Sexual Differentiation | Practical - Sexual Differentiation | Tutorial

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Cite this page: Hill, M.A. (2024, April 23) Embryology BGDB Practical - Sexual Differentiation Interactive. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/BGDB_Practical_-_Sexual_Differentiation_Interactive

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G