The scalp plexus is now present. Nasal openings and the tip of the nose are fully formed. The upper limbs become longer and continue to bend at the elbows and extend forward. Skin on the foot plate folds down between the future toes, each distinguishable from the other. Pelvis Anal membrane is perforated.
Urogenital membranes differentiate in male and female embryos.
Testes or ovaries are distinguishable.