KINE 3012 Lecture Notes - Baroreflex, Cardiac Output, Urinary System
3 Dec 2013
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Change from resting to exercise cardiac output is dominantly due to increased heart rate. Tpr drops during exercise by vasal dilation, higher sympathetic drive to the body, we know this is occurring because of increased heart rate. Connect the dots in a correct and coherent way, understand the cause effect relations* Long term regulation of blood volume & map. Limitation of baroreceptor reflex that it can"t affect blood volume. They can become less sensitive to repetitive stimulus. E. g. blood volume causes a continuous change of increased map. Their set point to responsiveness can become altered due to long term change. 140mmhg becomes the normal level of map *reason why there is hypertension* Baroreceptors now try to maintain a 140mmhg pressure in the body instead of 120mmhg. To solve this long term problem, relationship is built between the cardiovascular system and the renal system.
