material anatomical entityuterine cervixchemosensory organperipheral nervous systemsomatic nervous systemsympathetic nervous systemcompound eyelymph nodefollicular fluidfollicular antrumganglionregional part of nervous systemexternal ectodermzona pellucidainner cell masstrophoblastbilaminar disclung vasculatureperineuriumneuron projection bundleepineuriumcloacaprimitive urogenital sinusoral openingoral cavitypair of lungsbloodtendon sheathblastulasubarachnoid spacegut wallpharyngeal mucosablastocystrenal medullamusculature of bodycartilage tissue of sternumnasal vestibulescalpsympathetic trunkendocervix