Objective to explain the size of hepatic veins cave of normal human body, its Orifice form and connected characteristics to provide morphological evidence for clinical diagnosis.
目的探讨正常人体肝静脉管腔大小、开口形态及其汇合特点，为临床诊治相关疾病提供形态学依据。
2
It can effectively expand the velopharyngeal orifice area ventilation, to maintain the tension soft palate and the normal function of pharynx mucosa.