General embryo Flashcards
1
Q
When is the embry bilaminar?
A
end of 2 weeks
2
Q
When is the embryo trilaminar?
A
end of 3rd week
3
Q
What are the three germinal layers?
A
- endoderm
- mesoderm
- ectoderm
4
Q
What does the endoderm make up?
A
epithelium of
- respiratory tract
- gastrointestinal tract
- genitourinary tract
5
Q
What does the ectoderm make up?
A
- epidermis
- retinal and lens
- CNS
- PNS
- pia and arachnoid matter
- adrenal medulla
6
Q
What does the mesoderm make up?
A
- bones and muscles of the trunk and extremities
- cardiovascular system
- most of genitourinary system
- cartilage and muscle of the respiratory system
- adrenal cortex
- dermis of skin
- dura matter of spinal cord
