11) This develops into the brain and spinal cord.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
12) This develops into the lining of the gastrointestinal tract.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
13) This develops into the epidermis of the skin.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
14) The epiblast develops a primitive streak during days 14-15, the initial cells that ingress through the primitive streak become this germ layer.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
15) Mucus-producing glands of the respiratory tract arise from this layer.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
16) What embryonic epiblast cells that remain on the surface of the trilaminar disc are ultimately called.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
17) The neural tube develops from this layer.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
18) The mesoderm located deep to the neural tube forms the kidneys and the gonads is the ________.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
19) The ribs and vertebrae form from this primary germ layer.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm
20) The ectoderm develops into the epithelium of the skin, whereas this layer gives rise to the epithelial lining of the gut tube.
A) endoderm
B) ectoderm
C) mesoderm—somites
D) mesoderm—lateral plate
E) intermediate mesoderm