Does blood pressure increase or decrease with hemorrhage?
In general, blood pressure increases with hemorrhage. It is sign of immediate complications. Traumatic injury induces hemorrhage in patients.
The three factors that influence peripheral resistance are blood viscosity, blood vessel length, and blood vessel diameter. Increase in blood viscosity causes an increase in blood pressure. Increase in blood vessel length causes in increase in blood pressure. Increase in blood vessel diameter causes a decrease in blood pressure.
Would Stimulation of the heart by the parasympathetic nervous system increase or decrease blood pressure?
Increases in body temperature cause a corresponding increase in respiratory rate and heart rate because there is an increase in metabolic needs of the body. As regards blood Pressure, I believe the blood pressure goes down as a result of an Increase in body temperature. The body generates a lot of heat that decreases body hydration level and a result the body becomes dehydrated and the BP decreases. Increase with fever, necessitating more oxygen. The…
Yes your blood pressure will decrease for a couple of different reasons: The first is that your blood vessels have dilated to provide muscles with an increase in oxygenated blood and the surface (peripheral blood vessels) will dilate to increase the rate of heat loss from the body. Over a sustained period of exercise (months) the blood vessels will become more elastic, decreasing the pressure on the vessel walls and more importantly on the left…
It doesn't. The opposite is true. Blood pressure is proportional to blood volume. The greater the blood volume is, the higher the blood pressure will be. This is because there will be a greater volume of blood flowing through the blood vessels which means that a greater pressure will be exerted on the walls of the blood vessels, which means increased blood pressure.
In places with lower oxygen levels (typically areas with high elevation for example), the blood pressure will indeed increase. However, as one acclimates to(gets used to) the environment, the number of red blood cells in your body will also increase, which will then eventually decrease the higher than average blood pressure.
In the absence of any regulatory mechanisms what effect do you think an increase in blood pressure would have on glomerular filtration rate?
The rate of GFR will increase if the blood pressure increases, and will decrease if the plasma oncotic pressure increases. GFR=certain coefficient*arteriolar hydrotstatic pressure - (arteriolar oncotic pressure + glomerular hydrostatic pressure). Now, to put it very simply the arteriolar hydrostatic pressure is what the mean blood pressure in the afferent arteriole, so if it increases the GFR is bound to increase.
How could you adjust the afferent or efferent radius to compensate for the effect of reduced blood pressure on glomerular filtration rate?
It's because the increase blood pressure causes the blood vessels to dilate which means to open wider. Due to this, the diastolic blood pressure is even less than it was when you weren't exercising. Essentially, the diastolic blood pressure should be the same, however it's the size of the diameter of the blood vessel that alters the diastolic blood pressure.
Yes it can. Walking into the room to get your presser checked, just smoking a cigarette and other factors may effect your blood pressure. For an accurate test you should set at rest for a couple of minutes. But this doesn't answer the specific question asked. the answer is NO. Body position has nothing to do with increase or decrease in blood pressure as long as you are at rest. But even at rest, emotional…