Embryogenesis

Question 1

From Outside to In: 3 Oocyte layers

Answer 1

1. Corona Radiata
2. Zona Pellucida
3. Plasma Membrane

Question 2

Oligohydramnios is low amniotic fluid which causes POTTER, what does it stand for?

Answer 2

Pulmonary Hypoplasia

Oligohydramnios

Twisted skin

Twisted face

Extremity deformities

Renal absence/

Question 3

The yolk sac forms from ____blasta

Answer 3

Hypoblasts

Question 4

Vitelline vessels, early hematopoiesis, and germ cell development all form in the ___ ___ of the embryo

Answer 4

Yolk Sac

Question 5

During Gastrulation, Epiblast cells intercalate down the primitive streak and replace the hypoblast cells to form the ______

Answer 5

Endoderm

Question 6

The first gastrulation event that occurs is the

Answer 6

Primitive Streak

Question 7

The primitive streak regresses by the end of the ____ week

Answer 7

3rd week

Question 8

Key characteristic in “Mole” pregnancies includes the hormone:

Answer 8

HcG elevated

Question 9

Hypoblasts give rise to the tissue that makes up the ____ ___, which later becomes the umbilical cord that connects the fetus to the placenta

Answer 9

Connecting Stalk

Question 10

Two sites where there is no Intervening mesoderm, just tight ectoderm and endoderm

Answer 10

1. Buccopharyngeal membrane
2. Cloacal membrane

Question 12

The Amniotic Cavity forms from the ___blasts which differentiate into ___blasts

Answer 12

Epiblasts, Amnioblasts

Question 13

The Chorion frondosum is the ___ part of the placenta, whereas the decisua basalis is the ___ part of the placenta

Answer 13

Fetal, Maternal

Question 14

When female secretion expose the sperm acrosome and make tail more motile, this process is called _____

Answer 14

Capacitation