双语医学课件2.消化系统TheDigestiveSystem.pptVIP

Cardiovascular System: Major Vessels 1. renal artery 肾动脉 2.vertebral artery 脊椎动脉 3. subclavian artery 锁骨下动脉 4. aorta 主动脉 5. coronary artery 冠状动脉 6. celiac artery 腹腔动脉 7. superior mesenteric artery 肠系膜上动脉 8. lumbar artery 腰动脉 9. inferior mesenteric artery 肠系膜下动脉 10. gonadal artery 生殖腺动脉 renal artery 肾动脉 vertebral artery 脊椎动脉 3. subclavian artery 锁骨下动脉 4. aorta 主动脉 5. coronary artery 冠状动脉 6. celiac artery 腹腔动脉 7. superior mesenteric artery 肠系膜上动 8. lumbar artery 腰动脉 9. inferior mesenteric artery 肠系膜下动 10. gonadal artery 生殖腺动脉 A rich circulation Small intestine jejunum Peritoneum Mesentery Arterial supply to small intestine 腹膜 Peritoneum 1. 十二指肠的动脉供应主要由胃十二指肠动脉提供。 The arterial supply to the duodenum arises primarily from the gastroduodenal artery. 2. 小肠平滑肌分布为两层：外部的纵层和内部较厚的环层。 The smooth muscles of the small intestine are arranged in two layers. Small Intestine 小肠 Gastroduodenal artery * * * Gastrointestinal tract 胃肠道 Accessory organs 辅助器官 (Para. 1) The organization of the gastrointestinal tract What are the four layers? (Concentric layers) Sublayers Intrinsic nerves (内神经) The gastrointestinal tract 胃肠道 The submucosal plexus (Meissner plexus) 黏膜下层神经丛 （即迈斯纳神经丛） The myenteric plexus (Auerbach plexus) 肠肌神经丛 （即奥尔巴赫神经丛) The subserosal plexus 浆膜下神经网丛 What are the three nerve plexuses? 唾液 saliva 味蕾 taste buds 嗅神经 olfactory nerves 胃液的分泌 the secretion of gastric juice 恒牙 permanent teeth 咀嚼 mastication 食管 esophagus 蠕动 peristalsis 外层纵向肌 outer longitudinal layers of muscles 内层环形肌 inner circular layers of muscles Mouth and Esophagus 口腔和食道 1.Three pairs of salivary glands 1 liter of saliva per day salivation 唾液分泌 1.Three pairs of salivary glands 1 liter of saliva per day 2. Autonomic nervous system (自主神经系统)controls salivation. (sympathetic