distribution of immunoreactive cells in the embryonic gland suggests that pituitary peptide hormones ( adrenocorticotropin , acth ; melanotropin , msh ; prolactin , prl ; growth hormone , gh ) are synthesized in cells from the dorsal wall , while cells producing glycoprotein hormones ( luteinizing hormone , lh ; thyrotropin , tsh ) trace their lineage to ventral and ventrolateral areas of the anlage that include some endoderm .
C0032015
pituitary
C0040160
thyrotropin