The septum transversum originally arises as the most cranial part of the mesenchyme on day 22. During craniocaudal folding, it assumes a position cranial to the developing heart at the level of the cervical … See more

After successful craniocaudal folding the septum transversum picks up innervation from the adjacent ventral rami of spinal nerves C3, C4 and … See more

• The primitive mesentery of a six weeks’ human embryo, half schematic. See more

The cranial part of the septum transversum gives rise to the central tendon of the diaphragm, and is the origin of the See more

• digest-016—Embryo Images at University of North Carolina
• mslimb-011—Embryo Images at University of North … See more