The development of the human body; a manual of human embryology . munication of the ophthalmic vein and the jugular fora-men diminishes in length until it is practically obliterated,the ophthalmics and lateral sinuses meeting at the jugularforamen. The intra-cranial portions of the ophthalmicveins form the cavernous and inferior petrosal sinuses,the superior petrosals being formed later by a communica-tion between the cavernous and lateral sinuses. Passing backward from the jugular foramen the internaljugular veins unite with the inferior cardinals to form oneach side a common trunk, the ductu
The development of the human body; a manual of human embryology . munication of the ophthalmic vein and the jugular fora-men diminishes in length until it is practically obliterated,the ophthalmics and lateral sinuses meeting at the jugularforamen. The intra-cranial portions of the ophthalmicveins form the cavernous and inferior petrosal sinuses,the superior petrosals being formed later by a communica-tion between the cavernous and lateral sinuses. Passing backward from the jugular foramen the internaljugular veins unite with the inferior cardinals to form oneach side a common trunk, the ductus Cuvieri, and thenpassing transversely toward the median line open into thesides of the sinus venosus. So long as the heart retains itsoriginal position in the pharyngeal region the jugular is ashort trunk receiving lateral veins only from the upper-most segments of the neck and from the occipital seg-ments, the remaining segmental veins opening into theinferior cardinals. As the heart recedes, however, thejugulars become more and more elongated and the cervi-. .» ;r
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectembryol, bookyear1902
