中壳,中胚层的

小地老虎雄蛾中胚层生殖道和附腺的细胞结构和分泌功能

mesodermal band

mesodermal muscle

mesodermal primary pulp

mesodermal tube(=dorsal blood vessel)

mesodermal layer

mesodermal fold

mesodermal

mesodermal sac