 |
primitive ventricle cardiac muscle |
 |
1st branchial arch mandibular component ectoderm |
 |
trunk mesenchyme |
 |
3rd branchial arch ectoderm |
 |
4th branchial arch ectoderm |
 |
1st branchial arch mandibular component mesenchyme |
 |
2nd branchial arch ectoderm |
 |
primitive ventricle |
 |
lens pit |
 |
1st branchial arch maxillary component ectoderm |
 |
otocyst |
 |
dorsal mesocardium |
 |
2nd branchial arch mesenchyme |