Embryology Review Flashcards
2 weeks
Hgb Production
3 weeks
“Heart” Beat
Liver bud present
Mesentery is forming
3 to 4 weeks
Blood Cells Appear
Circulation is established
Primary neurulation
4 weeks
Intestine is present
Esophagus & stomach become distinct
4 to 5 weeks
Intraventricular Septum Begins to Form
5 weeks
Fusion of the endocardial Cushions
6 weeks
Midgut Into Umbilical Cord
Urinary Bladder Develops
6 to 7 weeks
Gonads Develop
Closure of Ventricular Septum
Formation of Coronary Arteries
7 weeks
Anal Canal Formed & Testosterone Released
Midgut Into Umbilical Cord
Urorectum Septum Fuses with Cloacal Membrane-separting rectum from developing urinary bladder
7 to 12 weeks
Maturation of Specific Immune Response
8 weeks
CV System Complete
& Nephrogenesis Begins
9 weeks
External Genitalia Form
10 weeks
Insulin Secretion Starts
Intestines reenter abdominal cavity and continue counterclockwise rotation around the axis of the superior mesenteric artery
9 to 10 weeks
Urine production & Glomerular Filtration
11 weeks
Thyroid Gland - TH synthesis