Lecture 3 P3 Flashcards
1
Q
Gastrulation involves the changing of
A
Epiblast of bilaminar disk into a 3 layer gastrula
2
Q
Gastrulation begins with
A
The formation of a primitive streak
3
Q
FORMATION Of primitive streak gives embryo
A
A midline and allows for symtetrical gorwth
Also give the embryo a specific cephalad-caudad dorsal-ventral orientation
4
Q
Gastrulation results in what 3 layers
A
Ectoderm
Mesoderm
Endoderm
Remainder of organogenesis starts with one of these layers
5
Q
What does endoderm form
A
GI tract ****** Liver Pancreas Urinary bladder****** Epithelial parts of trachea, lungs, pharyns Thyroid, parathyroid
6
Q
The mesoderm forms
A
Kidneys******** Skeletal muscle***** Circulatory system***** Gonads Cartilage
7
Q
Ectoderm forms
A
Nervous system*** Epidermis** Hair Nails Lens of eye
