A patient suffers a severe haemorrhage resulting in a lowered mean aerial pressure. Which of the following would be elevated above normal levels: (A) Splanchnic blood flow, (B) Cardiopulmonary receptor activity, (C) Right ventricular end-diastolic volume, (D) Hea rate
Answer is D. The hea rate would be elevated by the increased sympathetic activity and decreased parasympathetic activity caused by the baroreceptor reflex.