向腹侧 meaning in Chinese

hemad
ventrad
ventralward

During fever period avp concentration in the ventral septal region increased sharply , microinjection of avp into this region can strikingly inhibit febrile response induced by et , pge , , and il - 1 , but has no effect on the normal body temperature
发热时，腹侧幅区的avp含量明显增高。向腹侧肠区微量avp能明显抑制et 、 pgei和il一1性发热，但并不影响正常体温。