1
Q
When does the embryo become a foetus?
A
End of week 8.
2
Q
What are the three germ layers of the gastrula?
A
- Ectoderm
- Mesoderm
- Endoderm
3
Q
Which structures does the ectoderm give rise to?
A
CNS PNS Epidermis of skin, hair and nails Pituitary, mammary and sweat glands Sensory epithelium of nose, ear and eye
4
Q
What does the paraxial plate mesoderm give rise to?
A
Somites. These give rise to myotomes, sclerotomes and dermatomes.
5
Q
What does the intermediate plate mesoderm give rise to?
A
Kidneys
Gonads
6
Q
What does the lateral plate mesoderm give rise to?
A
Circulatory system
Muscle
Connective tissue
7
Q
What does the endoderm give rise to?
A
Epithelial lining of GI tract, respiratory tract and bladder
Parenchyma of thyroid, parathyroid, liver and pancreas
Epithelial lining of auditory tube
8
Q
Name the sections of the primitive gut.
A
Foregut, midgut, hindgut
IMMS
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