Talk:BGDB Sexual Differentiation - Quiz: Difference between revisions

@@ Line 13: / Line 13: @@
 - mesonephric duct cells
 ||The support cells in the genital ridge, forming the testes, express SRY and this leads to a cascade of signaling differentiating these cells into Sertoli cells, also called sustentacular (structural support) cells of Sertoli. [[P#primordial germ cell|Primordial germ cells]] are not involved in this initial sex determination step. The anterior pituitary participates in later hormonal events. Ovary support cells (granulosa cells) differentiate in the absence of SRY. Sesonephric duct cells, while present early in genital ridge development, are not the initiators of this process but later effected by gonad differentiation.
-{The adult spermatogenic epithelium is stimulated by follicle stimulating hormone (FSH)
-|type="()"}
-+ true
-- false
-|| Follicle stimulating hormone (FSH) does stimulate the spermatogenic epithelium and luteinizing-hormone (LH) stimulates testosterone production by Leydig cells.
 {The lower end of the mesonephric duct branches to form the:
@@ Line 58: / Line 51: @@
-{Select the correct options below for the process of implantation
+{Select the correct options below for the embryonic contribution to the female uterus and vagina
 |type="[]"}
-+ is driven by the trophoblast layer
+- Wolffian duct
-+ occurs following adplantation
+- Utereric duct
-+ can occur inside and outside the uterine body
++ Mullerian duct
-+ allows endocrine support of the corpus luteum
++ paramesonephric duct
+- urogenital sinus
-||Yes, all the above relate to the process of implantation.
+||Mullerian and paramesonephric duct are the same thing and the embryonic contributors to the female uterus and vagina development.
-{The extraembryonic coelom refers too
+{The relative movement of organs with the peritoneal cavity can best be described as:
 |type="()"}
-+ amniotic cavity, yolk sac and chorionic cavity
+- descent of the adrenal glands and gonads
-- pericardial cavity, pleural cavity and peritoneal cavity
+- ascent of the adrenal glands and genital tubercle
-- blastocoel, somitocoel and lateral plate coelom
++ ascent of the kidneys and descent of the gonads
-- maternal lacunae, uterine gland lumen, uterine body cavity
+- descent of the kidneys and adrenal glands
+- none of the above
-|| The extraembryonic coelom is the cavity lying outside the embryo forming the amniotic cavity, yolk sac and chorionic cavity. The intraembryonic coelom is the space inside the embryo lateral plate mesoderm forming the pericardial cavity, pleural cavity and peritoneal cavity. The blastocoel is the cavity inside the blastocyst before embryo formation. The somitocoel is the cavity forming inside the early somite before cell proliferation fills the space. The lateral plate coelom is the horseshoe space forming in the embryonic disc that gives rise to the the pericardial cavity, pleural cavity and peritoneal cavity. The maternal lacunae is the blood-filled space formed by the implantation process. The uterine gland lumen and uterine body cavity have nothing to do with embryonic spaces.
-{Which of the following statements is incorrect about the process of gastrulation
+||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.
-|type="()"}
-- gives rise to the trilaminar embryo
-- involves cell migration from the epiblast layer
-+ extends from the primitive node to the buccopharyngeal membrane
-- occurs at the region known as the primitive streak
-- generates endoderm and then mesoderm layers
-{What are the two main early embryonic developmental roles of the notochord
+{In the female fetus, the uterus develops  from the:
 |type="()"}
-+ mechanical role in embryonic disc folding and signaling for tissue patterning
++ Mullerian Duct
 - formation of the nucleus pulposis and separating cloacal and buccopharyngeal membranes
 - gastrulation and neuralation

Revision as of 15:59, 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

Point added for a correct answer:
Points for an incorrect answer:
Ignore the questions' coefficients:

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 In the female fetus, the uterus develops from the:

	Mullerian Duct
	formation of the nucleus pulposis and separating cloacal and buccopharyngeal membranes
	gastrulation and neuralation
	formation of the nucleus pulposis and intervertebral disc