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脾脏位于左上腹部第9—11肋骨之间,由于前面有肋骨遮盖,正常人的脾脏是摸不到的,它是人体最大的外周淋巴器官和贮血器官。成年人脾脏重约150—200克,体积约为12cm×7cm×3cm,位于血液循环通路上。其形态不规则、外侧面隆凸、内侧面中部微凹,有血管神经出入,呈暗红色,由白髓、边缘区及红髓三部分组成。脾的包膜较厚、表面有间质被覆、纤维包膜中含有少量具有收缩功能的平滑肌、能够调节机体的血量。 脾脏的内部为质软而脆的脾髓,分为白髓与红髓。白髓由淋巴细胞聚集而成,因大体上呈粟粒状白色区域而得名;白髓以外的区域为内含许多髓索和血窦的红髓,约占脾脏的三分之二,因含红细胞而呈红色;红髓
The spleen is located between the upper left abdomen 9-11 ribs, the ribs in front of the cover, the normal human spleen is inaccessible, it is the body’s largest peripheral lymphoid organs and blood storage organs. Adult spleen weighing about 150-200 grams, the volume is about 12cm × 7cm × 3cm, located in the blood circulation pathway. Its irregular shape, the lateral surface of the protuberance, the medial side of the pits, vascular access, dark red, white pulp, marginal zone and red pulp composed of three parts. The thicker envelope of the spleen, the surface of interstitial coating, fibrous capsule contains a small amount of smooth muscle contraction, can regulate the body’s blood. The internal spleen is a soft and fragile spleen, divided into white pulp and red pulp. White pulp is formed by the aggregation of lymphocytes, which is named for its grossly miliary white areas; areas other than white pulp are red pulp containing many cord and sinusoids, accounting for about two-thirds of the spleen, Red blood cells and red; red pulp