One Minute Embryology: Difference between revisions

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Embryology - 16 Apr 2024 Expand to Translate
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Introduction

Dr Mark Hill

These are a set of quick introductory videos with audio commentary designed to get students to begin to think about embryology.

They have also been posted on UNSW theBox and YouTube Embryology channel.

These videos run for about 1 minute and are not intended as a detailed description or for use elsewhere.

The first videos relate to undergraduate Medicine phase 1 embryology in BGDA and BGDB.

Human Timeline

Here is a quick description of the embryonic events in the human development timeline.

<html5media>File:1 Min Embryo - Human timeline.mp4</html5media>

Links: original movie page | BGDA lecture | BGDA Prac 3 | BGDA Prac 6 |

Audio Script
Hi there, Lets look at an overview of human development Human pregnancy occurs over 9 months. This is traditionally divided into 3 trimesters each 3 months long. The first trimester is mainly the embryonic period. While the second and third trimester is the fetal period of growth. The embryonic period is divided into 23 “stages” over the first 8 weeks. After the last menstrual cycle, this period also covers the next 2 and a half missed cycles. Human pregnancy is measured from this last cycle, while fertilisation occurs around ovulation of the next missed cycle. A positive pregnancy test can be seen 2 weeks later after fertilisation. The fertilised oocyte is called a zygote, that divides to form a morula. Further mitotic division forms a blastocyst. Forming a bilaminar then trilaminar embryo in week 3. Looking at events end of week 1 - blastocyst hatching week 2 - Implantation in the uterus week 3 - Key developmental processes week 4 - the heart and other structures form

Endoderm Development

Here is a quick description of the endoderm events during week 3 and 4 in developing the gastrointestinal tract.

<html5media>File:Endoderm 004.mp4</html5media>

Cite this page: Hill, M.A. (2024, April 16) Embryology One Minute Embryology. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/One_Minute_Embryology

What Links Here?

@@ Line 16: / Line 16: @@
-:'''Links:''' [[Human_Development_Timeline_Movie|original movie page]]
+:'''Links:''' [[Human_Development_Timeline_Movie|original movie page]] | [[BGDA Lecture - Development of the Embryo/Fetus 1|BGDA lecture]] | [[BGDA Practical - Fertilization to Implantation|BGDA Prac 3]] | [[BGDA Practical - Implantation to 8 Weeks|BGDA Prac 6]] |
+{| class="wikitable mw-collapsible mw-collapsed"
+! Audio Script &nbsp;
+|-
+| Hi there,
+Lets look at an overview of human development
+Human pregnancy occurs over 9 months.
+This is traditionally divided into 3 trimesters each 3 months long.
+The first trimester is mainly the embryonic period.
+While the second and third trimester is the fetal period of growth.
+The embryonic period  is divided into 23 “stages”  over the first 8 weeks.
+After the last menstrual cycle, this period also covers the next 2 and a half missed cycles.
+Human pregnancy is measured from this last cycle, while fertilisation occurs around ovulation of the next missed cycle.
+A positive pregnancy test can be seen 2 weeks later after fertilisation.
+The fertilised oocyte is called a zygote, that divides to form a morula.
+Further mitotic division forms a blastocyst.
+Forming a bilaminar then trilaminar embryo in week 3.
+Looking at events
+end of week 1 - blastocyst hatching
+week 2 - Implantation in the uterus
+week 3 - Key developmental processes
+week 4 - the heart and other structures form
+|}
 ==Endoderm Development==
 Here is a quick description of the endoderm events during week 3 and 4 in developing the gastrointestinal tract.