Heart Embryology Flashcards
1
Q
Gastrulation definition
A
Mass movement and invagination of the blastula to form 3 layers
2
Q
3 layers of the embryo:
A
- ectoderm
- endoderm
- mesoderm
3
Q
What is the ectoderm?
A
The outside layer of the embryo
4
Q
What does the ectoderm give rise to?
A
- Skin
- Nervous system
- Neural crest
- Cardiac outflow
- Coronary arteries
5
Q
What is the mesoderm?
A
The middle layer of the embryo
6
Q
What does the mesoderm give rise to?
A
- All muscle
- Most systems
- Blood
7
Q
What is the endoderm?
A
The inside layer of the embryo
8
Q
What does the endoderm give rise to?
A
- GI tract
- Pancreas
- Endocrine organs
9
Q
What are the 3 steps of heart formation?
A
- Formation of the primitive heart tube
- Cardiac looping
- Cardiac separation
10
Q
Why is the heart on the left?
A
Node secretes nodal which circulates due to ciliary movement
