VEIN SHANDONG UNIVERSITY Liu Zhiyu

1 、 Capilaris 2 ． Have a thinner wall and a larger diameter than their corresponding arteries 4. Form venous plexus and venous rete 。 6 ． sinuses of dura mater ， diploic veins 。 5 、。 superficial vein deep vein 3. Have venous valves which prevent reflux of blood Characteristic of veins

一、 pulmonary veins : right superior pulmonary veins right inferior pulmonary veins Left superior pulmonary veins Left inferior pulmonary veins left atrium

1. Cardiac vein system Superior vena cava system Inferior vena cava system (hepatic portal system ) 二、 The systemic veins ： The composition of systemic veins

It collect the blood from the head,the neck,the upper limbs,the thorcic wall and a portion of the organs within thorax A. formation ： It is formed by the junction of the two brachiocephalic veins B. The scope of collection ： 1. superior vena cava （一） superior vena cava system

The angle of the union of the internal jugular vein and subclavicular vein is called Venous angle internal jugular vein subclavicular vein Formation : 4. The branchiocephalic veins

Facial Vein Angular vein 眼上、下 静脉 Deep Facial Vein Pterygoid Venous Plexus 海绵窦 颈内 静脉 Facial Vein

2 ． azygos v. hemiazygos v ⑶ accessory hemiazygos v. ⑵ hemiazygos v. ⑴ azygos v.

（二） The inferior vena cana system B. The scope of collection ： The inferior vena cava receives blood from all structure below the diaphragm A. formation : The inferior vena cava is formed by the junction of the two common iliac veins 1. inferior vena cana

（ 3 ）. The common iliac vein It is composed by the junction of the external and internal iliac veins in front of sacroiliac joint, and collects the blood from the pelvis and the lower limbs

2 ． Superficial v.of upper limb 上肢浅静脉 （ 3 ） median cubital v. （ 1 ） cephalic v. ： （ 2 ） basilic v. ：

3 ． Superficial v.of lower limb （ 1 ） great saphenous v. ： superficial medial femoral v. superficial lateral femoral v. superficial epigastric v. superficial iliac circumflex v. external pudendal v. (2) tributaries ：

great saphenous v superficial medial femoral v. superficial iliac circumflex v. external pudendal v. superficial lateral femoral v.

（四） Hepatic Portal Vein 3. character 2.collection: 1 、 formation ：

Superior Mesenteric Vein Inferior Mesenteric Vein Splenic Vein Left Gastric Vein Right Gastric Vein Cystic Vein Paraumbilical Vein 4 、 tributaries