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Atlas of Human Embryos Chapter   Figure

T-8 spinal ganglion, azygos vein, base of right lung, efferent veins, erector spinae muscle group, esophageal endoderm, hepatic sinusoids, inferior vena cava (hepatocardiac segment), innermost intercostal muscle(s), muscle tissue in diaphragm, peritoneal cavity, pleural cavity, pleuroperitoneal membrane and canal, rectus abdominis muscle, sympathetic trunk, transversospinal muscle group, tubercle of rib 9

A section through the pleuroperitoneal canal and base of the lungs.

Observe:
1. The efferent veins of the liver draining blood from the hepatic sinusoids to the hepatocardiac segment of the inferior vena cava.
2. Muscle forming in the diaphragm near the esophagus.
3. The communication of the pleural cavity with the peritoneal cavity through the pleuroperitoneal canal.
4. The two subdivisions of the deep muscles of the back: erector spinae muscle group and transversospinalis muscle group.


Keywords: T-8 spinal ganglion, azygos vein, base of right lung, efferent veins, erector spinae muscle group, esophageal endoderm, hepatic sinusoids, inferior vena cava (hepatocardiac segment), innermost intercostal muscle(s), muscle tissue in diaphragm, peritoneal cavity, pleural cavity, pleuroperitoneal membrane and canal, rectus abdominis muscle, sympathetic trunk, transversospinal muscle group, tubercle of rib 9

Source: Atlas of Human Embryos.