The stomach胃 Shape Two surface: anterior and posterior Two curvatures a Lesser curvature胃小弯: near its lower part is angular incisure角切迹 口 Greater curvature胃大弯 long, convex and directed to the left and downward Iwo openings 口 Cardia贲门 a Pylorus幽门The Stomach 胃 Shape ◼ Two surface: anterior and posterior ◼ Two curvatures ❑ Lesser curvature 胃小弯 : near its lower part is angular incisure 角切迹 ❑ Greater curvature 胃大弯: long, convex and directed to the left and downward ◼ Two openings ❑ Cardia 贲门 ❑ Pylorus 幽门