From Embryology
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--Mark Hill (talk) 17:18, 5 August 2015 (AEST) Note your student number is already blue, as you have been previously enrolled in this course.

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Lab Attendance

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Lab Assessment 1

Article 1


This article was written in aims to evaluate a prospectively implemented clinical algorithm which served in the early identifications of Ectopic pregnancy (EP) and Heterotopic pregnancy (HP) after use of assisted reproductive technologies (In-vitro fertilization). The data used in this research were patients who all received in-vitro fertilization or other methods of Assisted reproductive technology from between January 1995 to June 2013.

The early pregnancy stage was monitored using clinical algorithms where all pregnancies were screened using Human chorionic gonadotropin (hCG) levels and any reported symptoms during pregnancy as well as use of ultrasound evaluations where hCG levels were abnormal or patient reported any pains.

The research found that within the 3904 pregnancies included in the data, the incidence of Ectopic and Heterotopic pregnancies were 0.77% and 0.46% respectively. The clinical algorithm managed to detect and select 96.7% of the 0.77% diagnosed with EP as well as 83.3% of the 0.46% diagnosed with HP leading to earlier treatment and resolution of the problem. These results showed the effectiveness of the developed clinical algorithm in the early identification and prompt intervention of EP and HP bypassing the catastrophic morbidity associated with delayed diagnosis

Article 2


The article researched the effects of different levels of progesterone on the day of human gonadotropin administration in the live birth delivery rates during in-vitro fertilization. Previous researches have shown that the presence of late follicular phase progesterone is essential for follicular development, ovulation and endometrial receptivity. Studies were carried out on 2723 cycles performed in patients aged between 19 ~35 years of age and undergoing controlled ovarian stimulation.

The patients underwent ovarian stimulation using a gonadotropin releasing hormone antagonist for pituitary down-regulation and then final oocyte maturation was triggered using hCG 36h before oocyte retrieval. On the day of hCG administration, progesterone evaluation was performed and live birth delivery rates were compared at regular progesterone intervals.

The study found that live birth rates were significantly lower in patients with bow low (<0.5 ng/ml) and high (>1.5 ng/ml) late follicular progesterone levels.

--Mark Hill (talk) 11:09, 4 September 2015 (AEST) These are good summaries of the 2 papers with correct reference format. (5/5)

Lab Assessment 2

Biopsy of Morula Stage Embryo.png

Biopsy of a Morula Stage Embryo[1]

--Mark Hill (talk) 11:10, 4 September 2015 (AEST) Image uploaded correctly with reference, copyright and student template. (5/5)

Lab Assessment 3




--Mark Hill (talk) 11:11, 4 September 2015 (AEST) These 3 references relate to your project topic. It would have been good to include even just a single sentence explaining why you selected these 3. (4/5)

Lab Assessment 4 - Quiz

Mesoderm Development

Cells which migrate from somites form:

Respiratory System
Smooth Muscles
Digestive System
Skeletal Muscles
Reproductive System



Which of the following statements are INCORRECT regarding Implantation?

Implantation commences at day 6 ~ 7
The blastocyst rolls along the uterine wall to align the inner cell mass furthest from the uterine epithelium
Implantation is the process in which a blastocyst enters the uterine wall
A coagulation plug forms where the blastocyst has entered the uterine wall


At which of the following layers does Implantation occur?

Spongy layer of Endometrium
Compact layer of Endometrium
Implantation layer of Endometrium

--Mark Hill (talk) 11:12, 4 September 2015 (AEST) 3 questions here please. I will assess after the lab today.

ANAT2341 Student 2015 Quiz Questions

Lab Assessment 5

What is the difference between Gastroschisis and Omphalocele?

Omphalocele is fetal defect (occurring 1 in every 4000 births) which is defined as the herniation of the abdominal viscera into the umbilical cord. In this abdominal wall defect, internal abdominal organs such as the intestines, liver protrude outside of the belly via the belly button where the organs are covered by a thin, opaque sac which separates the internal organs with the fluids in the amniotic sac during pregnancy. The occurrence of Omphalocele is due to the incorrect or incomplete development of the muscles of the abdominal wall.

Gastroschisis is a defect which is thought to have been caused due to the interruption of blood supply to the developing abdominal wall from the omphalomesenteric duct artery in the 8th week of gestation. Unlike Omphalocele occurring from the belly button, it is characterized by an extra-umbilical herniation of internal abdominal organs at the junction of umbilicus and normal skin (beside the belly button) and not enclosed in visceral peritoneum.

Omphalocele develops in the 9th week of development when the intestines do not re-enter the body cavity whereas Gastroschisis arises within the 6th ~ 7th week of development when the abdominal wall muscles of the baby do not develop properly

<pubmed>2932813</pubmed> <pubmed>12130917</pubmed> <pubmed>15305094</pubmed>

Lab Assessment 7

1. Identify and write a brief description of the findings of a recent research paper on development of one of the endocrine organs covered in today's practical.

2. Identify the embryonic layers and tissues that contribute to the developing teeth.

Tooth development (Odontogenesis) begins in the 6th week of embryonic development and is made up of ectoderm, mesoderm and neural crest ectomesenchyme

- Ameloblasts: derived from the epithelium of ectoderm cells from the 1st pharyngeal arch which produces the enamel. Enamel covers the crown of the tooth and are only found to be present during the process of odontogenesis

- Odontoblasts: ectomesenchymal cells derived from the neural crest. These cells begin by forming the predentin which later hardens to become dentin


<pubmed>26244658</pubmed> Look at this aye [2]

  1. <pubmed>25191937</pubmed>|[1]
  2. <pubmed>26244657</pubmed>

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2015 Course: Week 2 Lecture 1 Lecture 2 Lab 1 | Week 3 Lecture 3 Lecture 4 Lab 2 | Week 4 Lecture 5 Lecture 6 Lab 3 | Week 5 Lecture 7 Lecture 8 Lab 4 | Week 6 Lecture 9 Lecture 10 Lab 5 | Week 7 Lecture 11 Lecture 12 Lab 6 | Week 8 Lecture 13 Lecture 14 Lab 7 | Week 9 Lecture 15 Lecture 16 Lab 8 | Week 10 Lecture 17 Lecture 18 Lab 9 | Week 11 Lecture 19 Lecture 20 Lab 10 | Week 12 Lecture 21 Lecture 22 Lab 11 | Week 13 Lecture 23 Lecture 24 Lab 12 | 2015 Projects: Three Person Embryos | Ovarian Hyper-stimulation Syndrome | Polycystic Ovarian Syndrome | Male Infertility | Oncofertility | Preimplantation Genetic Diagnosis | Students | Student Designed Quiz Questions | Moodle page

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