. A manual of elementary zoology . Zoology. 58 MANUAL OF ELEMENTARY ZOOLOGY s. v high pressure in the carotid arch. Beyond the carotid gland the artery runs forwards and upwards towards the head, where it di- vides into an inter- nal carotid, which passes into the skull and supplies the brain, and an external carotid, which supplies the orbit and roof of the mouth. The systemic arch curvesupwardsand backwards round the oesophagus to j oin its fellow i n the middle line below the backbone. On its way it gives off an oesophageal ar- tery to the oesopha- gus, an occipito- •vertebral artery to the
. A manual of elementary zoology . Zoology. 58 MANUAL OF ELEMENTARY ZOOLOGY s. v high pressure in the carotid arch. Beyond the carotid gland the artery runs forwards and upwards towards the head, where it di- vides into an inter- nal carotid, which passes into the skull and supplies the brain, and an external carotid, which supplies the orbit and roof of the mouth. The systemic arch curvesupwardsand backwards round the oesophagus to j oin its fellow i n the middle line below the backbone. On its way it gives off an oesophageal ar- tery to the oesopha- gus, an occipito- •vertebral artery to the head and back- bone, and a large subclavian artery to the arm. Just before joining its fellow, the left sys- -A diagram 01 the venous system . ' , .' of the frog. temic arch g!Ves , Anterior abdominal vein; ir., brachial; , °" backwards the cardiac (from wall of heart to anterior abdominal); large CCelidCO'ltlesen- cut., cutaneous; , dorsolumbar; , external , . T^u" jugular; /., femoral; , hepatic portal; hep., *enc artery, 1 nlS hepatic ; , internal-jugular; , inferior vena divides into an cava; inn., innominate; /., lingual; md., mandi- bular;/!/., pelvic; >«/., pulmonary; r., renais; anterior mesenteric, , renal portal; sc, sciatic ; , subscapular ; *.-. hnwpl anrfl , sinus venosus(seen through ventricle); , u UUWcl and superior vena cava ; rc/., subclavian ; spm., right Spleen, and a spermatic ; x., vessel joining sciatic to femoral. 7- , . cceliac, which sup- plies the stomach after giving a hepatic branch to the liver. The vessel formed by the junction of the systemic arches. 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 Borradaile, L. A. (Lancelot Alexander), 1872-1945. London : H. Frowde, Hodder & Stoughton
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1920
