Embryology Flashcards
This includes the introduction of embryology, as well as the embryology segments introduced in later lectures (Nervous sys., cardiovascular, etc.)
The inner blastomeres of the morula develop into the ______.
The inner cellular mass
The outer blastomeres develop into the _______.
Trophectoderm
What is the role of the cortical reaction during fertilization?
Content of the ochre cortical granules released and ‘hardens’ the zone pellucida (‘zona-block) preventing other sperm from entering the ochre (prevents polyspermy)
Extraembryonic primordial germ cells proliferate by ______.
Mitosis
Extraembryonic primordial germ cells (PGCs) migrate from the __________.
Wall of the yolk sac
Extraembryonic primordial germ cells develop into the _____ ____.
Germ cells
Extraembryonic primordial germ cells migrate into the developing __________ _____.
Indifferent gonad
In order to carry the two genomes to the site of unification in the oviduct, specialized cells known as the _____ have developed _____ and ____ _____
Gametes; maternal and paternal gametes
The urinary and reproductive systems will originate from the _______ _______.
Intermediate mesoderm
The ____ ______ divides the coelom into thoracic and abdominal regions.
Septum transversum
Primordial germ cells are a specific population originating from _______.
Epiblastic cells
