[Mechanism and significance of cardiovascular changes during the defense-alerting response].
D000818:Animals; D001794:Blood Pressure; D002319:Cardiovascular System / Q000503:physiopathology*; D003674:Defense Mechanisms; D006801:Humans; D006973:Hypertension / Q000209:etiology; D007031:Hypothalamus / Q000503:physiopathology; D009200:Myocardial Contraction; D010487:Periaqueductal Gray / Q000503:physiopathology; D013312:Stress, Physiological / Q000503:physiopathology*; D013564:Sympathetic Nervous System / Q000503:physiopathology