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What is the effect of hypovolemic shock on the blood vessels and the heart?
Blood vessels constrict to increase venous return and maintain pressure. Heart rate increases to compensate for loss of blood pressure and to maintain cardiac output.
What does it mean when you stand up and stretch and everything goes black almost like you are momentarily blind and you feel dizzy so you have to hold onto a chair to keep your balance?
What you were experiencing, in doctor speak, is orthostatic hypotension, a sudden drop in blood pressure. Normally, blood vessels constrict to maintain blood pressure and compensate for changes in position, but in some cases the blood vessels don't compensate and, when you stand up, the blood doesn't go to the brain. Basically, the reflexes of the body don't catch up with the blood vessels.
What do plasma proteins that remain in the blood capillaries help?
Maintain the osmotic pressure of the blood
Can electric shock cause high blood pressure?
Not necessarily. Your body will try to compensate when it is in shock by raising the heartbeat (thereby increasing blood pressure). But sometimes the body can not compensate adequately. In this case, your blood pressure may not increase.
If you feel dizzy and everything goes black?
What you were experiencing, in doctor speak, is orthostatic hypotension, a sudden drop in blood pressure. Normally, blood vessels constrict to maintain blood pressure and compensate for changes in position, but in some cases the blood vessels don't compensate and, when you stand up, the blood doesn't go to the brain. Basically, the reflexes of the body don't catch up with the blood vessels.
What is sensitive to changes in pressure or to movement of fluid?
Baroreceptors are sensitive to changes in pressure, such as those in blood vessels that help regulate blood pressure. Similarly, hair cells in the inner ear are sensitive to movement of fluid, allowing us to maintain balance and perceive sound.
Which systems interact to maintain body pressure?
The cardiovascular system, which includes the heart and blood vessels, along with the nervous system and the endocrine system work together to regulate blood pressure. The cardiovascular system controls the flow of blood, the nervous system helps to detect changes in blood pressure, and the endocrine system releases hormones that influence blood vessel constriction and dilation to maintain proper pressure levels.
How will the lungs compensate for an acute rise in the partial pressure of carbon dioxide in arterial blood?
The lungs can compensate for an acute rise in carbon dioxide levels by increasing the rate and depth of breathing, known as hyperventilation. This helps to eliminate excess carbon dioxide from the blood and maintain the acid-base balance in the body.
Baroreceptors in the feedback system that control blood pressure sense changes in?
Baroreceptors in the feedback system that control blood pressure sense changes in the stretch of the arterial walls, which occurs due to variations in blood pressure. When blood pressure rises, the walls of the arteries stretch more, leading to increased firing of baroreceptors. Conversely, a drop in blood pressure results in decreased stretch and reduced baroreceptor activity. This information is relayed to the central nervous system, which adjusts heart rate and vascular resistance to maintain stable blood pressure.
What do pressoreceptors do?
Pressoreceptors are sensors located in blood vessels that detect changes in blood pressure. They send signals to the brain to help regulate and maintain blood pressure within a normal range. This feedback system is crucial for homeostasis and ensuring adequate blood flow to organs and tissues.
Why is when sometimes you stand up everything goes black?
What you were experiencing, in doctor speak, is orthostatic hypotension, a sudden drop in blood pressure.Normally, blood vessels constrict to maintain blood pressure and compensate for changes in position, but in some cases the blood vessels don't compensate and, when you stand up, the blood doesn't go to the brain. Basically, the reflexes of the body don't catch up with the blood vessels.Read more: http://wiki.answers.com/What_does_it_mean_when_you_stand_up_and_stretch_and_everything_goes_black_almost_like_you_are_momentarily_blind_and_you_feel_dizzy_so_you_have_to_hold_onto_a_chair_to_keep_your_balance#ixzz1LpwAP9PG
Why norrowing of the arteries decreases the blood flow but increases the blood pressure?
Narrowing of the arteries, or arteriosclerosis, restricts blood flow by creating a smaller lumen through which blood must pass, leading to increased resistance. As the heart works harder to maintain adequate blood flow despite this resistance, blood pressure rises to compensate for the reduced diameter. This combination of decreased flow and increased pressure can strain the cardiovascular system, potentially leading to further health complications.
