Blood Pressure Essay
A decrease in blood volume will cause a decrease in blood pressure. There are specialized receptors in the body that are able to detect whether blood pressure is going up or down and these are called baroreceptors. Baroreceptors are found in 3 different places; the carotid arteries, aortic arch and the kidneys. The baroreceptors in the carotid arteries watch the blood pressure in the head, the aortic arch baroreceptors measures pressure in the peripheral body and the baroreceptors in the kidneys monitor abdomen and pelvic pressure. If the blood pressure drops, the baroreceptors will send a signal to the cardiac center in the medulla oblongata. The medulla …show more content…
Stroke Volume (SV)
Stroke volume has two parts and can be written as : Stroke Volume=end diastolic volume – end systolic volume. (SV=EDV-ESV). The end diastolic volume is how much blood is in the ventricle after diastole, when all the valves are closed and the ventricles are full. End systolic volume is the volume of blood in the ventricle after the ventricles contract, and can be measured as mL per beat.
To increase end diastolic volume epi and norepi will bind to receptors on the skeletal, smooth and cardiac muscle causing Ca2+ gates in the sarcoplasmic reticulum to open and