vein-lymph靜脈淋巴組胚-資料下載頁
2025-08-11 17:05本頁面
【正文】 from filariasis The lymph conducting channels The lymphatic capillaries ? begins as dilated blind end and form work in tissue spaces ? the wall consists of a single layer of overlapping endothelial cells with wide intercellular space endothelial cell anchoring filament Lymphatic vessels ? more numerous valves than those in veins, permit lymph to flow in only one direction and give lymphatic vessels a beaded appearance ? arranged into a superficial set and a deep set within the body ? superficial lymphatic vessels are in the superficial fascia ? deep lymphatic vessels are beneath the deep fascia Lymphatic trunks ? lumbar trunk ? receive the lymph from the lower limbs, the walls and viscera of the pelvis, the kidneys, the suprarenal glands and the deep lymphatics of the greater part of the abdominal wall ? the lumbar trunks empty into the cisterna chyli lumbar trunk cisterna chyli Intestinal trunk ? unpaired ? receives the lymph from the stomach, intestine, the pancreas, spleen and liver ? empties lymph into the cisterna chyli intestinal trunk cisterna chyli Jugular trunk drains the head and neck Subclavian trunk drains the upper limb Bronchomediastinal trunk drains the thorax, lung and the heart the left trunks empty into the thoracic duct the right trunks empty into the right lymphatic duct jugular trunk subclavian trunk Bronchomediastinal trunk Lymphatic duct ? Thoracic duct ? the largest lymphatic vessel ? arises from the cisterna chyli ? traverses the diaphragm at the aortic aperture主動脈空 ? in neck is joined by the left jugular, subclavian and bronchomediastinal trunks ? drains into the left venous angle ? collects most of the lymph in the body Cisterna chyli ? a dilated sac at the lower end of the thoracic duct into which lymph from the intestinal trunk and two lumbar trunks flow ? situated in front of the first lumbar vertebral body Cisterna chyli Thoracic duct ? Right lymphatic duct ? formed by the union of the right jugular trunk, right subclavian trunk and right bronchomediastinal trunk ? drains into the right venous angle ? collects the lymph from the right upper limb, the right side of the neck, head, thorax, heart and the right lung Lymphoid ans lymph nodes ? distributed widely and linked by lymphatic vessels ? filter lymphatic fluid, and store lymphocytes ? bee enlarged in various condition
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