Select
Image:

The septum transverum is the primordium of the diaphragm which is located just rostral to the developing liver. Bilateral passageways (pericardioperitoneal canals) connect the pluropericardial and peritoneal portions of the body cavity at this developmental stage.
                     Species: Mouse 
                     Day Gestation: 9 
             Approx. Human Age: 26 days 
                                   View: Frontolateral 
            Body Cavities (Late Week 4)
                                    11a of 26