to assess whether hemorrhagic shock causes simultaneous release of methionine enkephalin-like substance ( mels ) and arginine vasopressin ( avp ) both in cerebrospinal fluid ( csf ) and circulating blood , continuous bleeding at a rate of 1 ml.kg-1.min-1 was undertaken for 40 min in anesthetized dogs ( n = 6 ) and mean arterial pressure and heart rate were measured .
C0036982
hemorrhagic shock
C0019080
bleeding