. A laboratory manual and text-book of embryology. Embryology. 78* SeqmeniaJ arkry Cbeliac artery 10th Dorsal segmental artery V- pancreas I â , , 1 r Dorsal aorta Coeliae axis YolH-stalK Vitelline artery Mesonephrtc arteries Dorsal aorta /?. Umbilical artery Cloaca- Common iliac artery Vitellhi artery. A â B Fig. 270.âReconstructions showing the development of the umbilical and iliac arteries: A, 5 mm. embryo; B, 9 mm. embryo (after Tandler). onephric ducts, and in 9 mm. embryos the primitive ventral umbilical artery has disappeared. From the newly formed vessel an artery arises which becomes
. A laboratory manual and text-book of embryology. Embryology. 78* SeqmeniaJ arkry Cbeliac artery 10th Dorsal segmental artery V- pancreas I â , , 1 r Dorsal aorta Coeliae axis YolH-stalK Vitelline artery Mesonephrtc arteries Dorsal aorta /?. Umbilical artery Cloaca- Common iliac artery Vitellhi artery. A â B Fig. 270.âReconstructions showing the development of the umbilical and iliac arteries: A, 5 mm. embryo; B, 9 mm. embryo (after Tandler). onephric ducts, and in 9 mm. embryos the primitive ventral umbilical artery has disappeared. From the newly formed vessel an artery arises which becomes the external iliac artery of the adult. The new lateral umbilical trunk from the aorta to the origin of the external iliac now becomes the common iliac artery, and shifts its position to the ventral side of the aorta. The remainder of the umbilical trunk constitutes the hypogastric artery. Arteries of the Extremities.âIt is assumed that in man, as in mammals, the first vessels of the limb buds form a capillary plexus. Upper Extremity.âThe capillary plexus takes its origin by several lateral branches from the aorta. In human embryos of 5 mm. but one connecting vessel remains and this takes its origin secondarily from the seventh intersegmental artery, forming the ventral branch of this artery and its lateral ramus. The portion of this vessel in what will become the free arm is. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Prentiss, Charles William, 1874-1915. Philadelphia, London, W. B. Saunders
Size: 1741px × 1435px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectembryology, bookyear1
