Embryology Flashcards
0
Q
Mesodermal derivatives?
A
Bone Muscle CT cartilage Blood vessels Lymphatic
1
Q
Ectoderm all derivative
A
Skin Hair nails lens cornea, mouth and anus lining CNS Peripheral nerves Retina and eyes
2
Q
Endoderm all derivatives?
A
Lining digestive tract
Glands with digestion eg live, pancrea
Lungs
3
Q
Situs Inversus?
A
The cilliated signal cells on wrong side of notochord hence results in mirror of all internal organs
4
Q
What does the primitive streak define?
A
The front and back. Anterior and posterior of body
5
Q
Importance of notochord?
A
Defines phylum Chordata
Basis for axis skeleton
Formation into nervous system
6
Q
Hat does the fate of epiblast depend on?
A
Where in the streak they invaginate
7
Q
Prenotochondral cells of epiblast migrate through which region of primitive pit?
A
Cranial
8
Q
What direction does development proceed?
A
Cranial to caudal
