1. Precise anatomtic structure: suprasternal notch, clavicle, right cervical ribs, sternocleidomastoid and etc.
2. Lifelike vessel structure: internal jugular vein, external jugular vein, subclavical vein and brachiocephalic vein.
3. The puncture of internal jugular vein and Subclavical vein and heart catheterization can be practiced.
4. The skin and veins can be replaced and students will feel an apparent ″pop″ when the needle has been thrusted into the vein.
