the veins
The greatest pressure drop in the circulatory system occurs in the arterioles. Arterioles are small, muscular blood vessels that regulate blood flow and control blood pressure. As blood travels from the arteries to the capillaries, the arterioles cause a significant decrease in pressure to ensure proper exchange of nutrients and waste between the blood and tissues.
the arterioles
The most serious problem with low blood pressure occurs when there is a sudden drop, which can be life-threatening due to widespread ischemia (insufficient supply of blood to an organ due to blockage in an artery).
Exertion will cause blood pressure to elevate. Biking makes my blood pressure drop ( afterwards )
Dehydration can cause a drop in blood pressure. Be sure you drink enough water to stay hydrated. Pneumonia can also cause a drop in blood pressure, most likely due to dehydration.
arterioles
The pain and the stress from the injury can result in a temporary increase in blood pressure. But if it's not tended to immediately and the blood loss stopped, it can result in a drop in blood pressure. This drop can sometimes be severe.
Blood pressure worsens in the winter.
No, you cannot faint while you are asleep. Fainting typically occurs when there is a sudden drop in blood pressure, which is unlikely to happen during sleep.
yes
Yes, your blood pressure can drop when you are cold because your blood vessels may constrict in response to the cold temperature. This can lead to a decrease in blood flow and lower blood pressure. Additionally, shivering can also affect blood pressure by increasing your heart rate and oxygen demand.
uremia