291Name the arrowed structure：Inferior mesenteric artery(肠系膜下动脉)

每天朗读一段医学影像学英语文章

Answer:：Inferior mesenteric artery

· The inferior mesenteric artery is the third unpaired branch of the aorta.

· It is a much smaller calibre vessel compared with the coeliac trunk or superior mesenteric artery.

· It supplies blood to the mid transverse colon through to the proximal rectum.

· Branches of the internal iliac artery supply the middle and distal rectum and anal canal.

· The watershed area is the region of colon between the supply of the superior mesenteric artery and inferior mesenteric artery, and is more vulnerable to ischaemia.

Notes:

1. inferior [ɪnˈfɪriə(r)] adj. 下级的

2. mesenteric [mesən'terɪk] adj. 肠系膜的

3. aorta [eɪˈɔ:rtə] n. 主动脉

4. coeliac ['si:lɪˌæk] adj. 腹的，下腹的

5. colon [ˈkoʊlən] n.结肠

6. rectum [ˈrɛktəm] n. 直肠

7. iliac ['ɪlɪˌæk] adj.髂骨的

8. ischaemia [ɪˈski:miə] n. 缺血

来源：每天朗读一段医学影像学英语文章

圈主

深圳市人民医院放射科副主任医师杨敏洁

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