BGDA Practical - Placenta and Fetal Membranes Interactive

Introduction

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

Implantation and Early Placentation Interactive Component

Attempt the Quiz - Implantation and Early Placentation

Here are a few simple Quiz questions that relate to Implantation and Early Placentation from the practical. 1 During implantation the blastocyst:   usually implants in the posterior wall of the body of the uterus   releases substances that cause local changes in the endometrial tissue   attaches itself to endometrium at its embryonic pole   all of the above are correct 2 During week 2 (GA week 4) the blastocyst trophectoderm (trophoblast) layer initially differentiates into two layers the:   hypoblast and trophoblast   epiblast and primitive yolk sac   syncytiotrophoblast and cytotrophoblast   hypoblast and epiblast 3 The intra-embryonic coelom transiently connects to the extra-embryonic coelom.   false   true 4 In humans the most common site of implantation is:   uterine tube   cervix   lateral wall of uterus   posterior wall of uterus   anterior wall of uterus 5 Which of the following structures are considered extra-embryonic coeloms?   peritoneal sac   yolk sac   allantois   chorionic sac   amniotic sac   pericardial sac Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities

Placental Villi Interactive Component

Attempt the Quiz - Placental Villi

Here are a few simple Quiz questions that relate to Placental Villi from the practical. 1 The stage of placental villi development where the core is initially solid mesoderm is:   primary villi   secondary villi   tertiary villi   quaternary villi 2 The developing placenta arises from the:   decidua frondosum   decidua capsularis 3 The developing amniotic membrane later fuses with the:   chorionic membrane   yolk sac   maternal blood vessels   maternal uterine glands   none of the above Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities Additional Information: placental villi

Maternal Decidua Interactive Component

Attempt the Quiz - Maternal Decidua

Here are a few simple Quiz questions that relate to Maternal Decidua from the practical. 1 During late pregnancy, which of the following layers of placental membrane is in direct contact with maternal blood?   the cytotrophoblastic shell   the syncytiotrophoblast   the extraembryonic mesoderm   the intraembryonic mesoderm   the endothelium of placental blood vessels 2 Which one of the following statements about the maternal decidual reaction is most correct.   the maternal decidual reaction commences at the site of implantation   the maternal decidual reaction protects the uterine wall from over implantation   the maternal decidual reaction spreads through the entire uterus   the maternal decidual reaction involves the uterine stromal cells   all of the above refer to the maternal decidual reaction 3 How is the uterine cavity lost?   decidua basalis and decidua capsularis fuse   decidua basalis and decidua parietalis fuse   decidua capsularis and decidua parietalis fuse   all decidual layers fuse   none of the above 4 Which maternal arteries are remodelled by trophoblast cells?  internal iliac artery   uterine artery   arcuate arteries   helicine arterioles   radial arteries   spiral arteries 5 Which of the following terms best describes the form of human placental organisation/classification?   Haemochorial   Endotheliochorial   Epitheliochorial Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities Additional Information: maternal decidua

Placental Cord Interactive Component

Attempt the Quiz - Placental Cord

Here are a few simple Quiz questions that relate to Placental Cord from the practical. 1 The placental cord developmentally originates from the:   yolk sac   yolk stalk   connecting stalk   chorionic plate   all of the above are correct 2 At birth, the placental cord blood vessel circulation is decreased by:   Wharton jelly expansion   vessel smooth muscle contraction   placental artery spiral contraction   all of the above 3 In the human placental cord development which blood vessel is typically lost?   right umbilical artery   left umbilical artery   right umbilical vein   left umbilical vein   none of the vessels are lost 4 The human placental artery carries oxygenated blood to the fetus.   true   false Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities Additional Information: placental cord

Placental Functions Interactive Component

Attempt the Quiz - Placental Functions

Here are a few simple Quiz questions that relate to Placental Functions from the practical. 1 The difference in oxygen tension between the umbilical artery and umbilical vein is about:   100 pO2 (torr)   55 pO2 (torr)   45 pO2 (torr)   10 pO2 (torr)   none of the above are correct 2 Which of the following hormones produced by the placenta is important for initially preserving the pregnancy?   Human chorionic gonadotrophin   Human chorionic somatommotropin   Human chorionic thyrotropin   Human chorionic corticotropin 3 Which of the following hormones produced by the placenta is important for later preserving the pregnancy?   progesterone   Human chorionic somatommotropin   Human chorionic gonadotrophin   Human chorionic thyrotropin   Follicle Stimulating Hormone   Relaxin 4 Which of the following options are the roles of placental estrogens.   stimulates growth of the maternal uterus myometrium   antagonizes the maternal uterus myometrial-suppressing activity of other hormones   stimulates maternal mammary gland ductal growth   stimulates maternal mammary gland alveolar growth   stimulates development of female fetal ovary 5 The placenta is said to have a "metabolic" role in the synthesis compounds except for:   glycogen   dehydroepiandrosterone-sulphate   cholesterol   fatty acids Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities Additional Information: endocrine placenta

Diagnostic Techniques Interactive Component

Attempt the Quiz - Diagnostic Techniques

Here are a few simple Quiz questions that relate to Diagnostic Techniques from the practical. 1 Which of the following options would be the earliest invasive diagnostic technique carried out clinically:   ultrasound   amniocentesis   chorionic villus sampling   none of the above 2 Which placental parameter is measured by ultrasound at the mid-portion from the chorionic plate to the basilar plate.   placental diameter   placental thickness   placental volume   placenta position 3 Doppler ultrasound of the placental cord can be used to mainly measure:   placental cord diameter   placental artery diameter   placental vein diameter   placenta position   placental blood flow 4 The amniotic fluid volume increases as the embryo and fetus grows, with the rate of change varying during the pregnancy. When typically is the period of maximum weekly volume increase?   up to 8 weeks   8 to 13 weeks   13 to 21 weeks   21 to 33 weeks   34 weeks   40 weeks 5 Cord stem cells can be derived from which of the following tissues:   placental cord blood   placental cord connective tissue   maternal placental tissue   all of the above   none of the above 6 Which of the following diagnostic techniques has in the past identified as having the higher risk for miscarriage?   ultrasound   amniocentesis   chorionic villus sampling   fetal cells from maternal blood Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities Additional Information: pregnancy test | amniocentesis | chorionic villus sampling | ultrasound | hCG

Placentation Abnormalities Interactive Component

Attempt the Quiz - Placentation Abnormalities

Here are a few simple Quiz questions that relate to Placentation Abnormalities from the practical. 1 Which of the following is the most common form of placental abnormality:   placenta accreta   placenta increta   placenta percreta   vasa previa 2 Which of the following is the best description of a complete mole:   three sets of chromosomes instead of the usual two   chromosomal genetic material from the oocyte is lost, by an unknown process   triploidy of the genetic material   excess proliferation of the maternal decidua 3 The condition "twin–twin transfusion syndrome" results from:   an unbalanced blood flow from one twin to the other in utero   a balanced blood flow from one twin to the other in utero   direct connection of placental vein with placental artery   direct connection of placental arteries with placental vein   none of the above 4 Which of the following organisms can cross the "placental barrier"?   cytomegalovirus   rubella   measles   malaria   listeria Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities Additional Information: placenta abnormalities | ectopic pregnancy | hydatidiform mole

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

BGDA: Lecture 1 | Lecture 2 | Practical 3 | Practical 6 | Practical 12 | Lecture Neural | Practical 14 | Histology Support - Female | Male | Tutorial

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Cite this page: Hill, M.A. (2026, September 30) Embryology BGDA Practical - Placenta and Fetal Membranes Interactive. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/BGDA_Practical_-_Placenta_and_Fetal_Membranes_Interactive

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© Dr Mark Hill 2026, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G