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the parasympathetic nervous system has little effect because it calms the body but the sympathetic system causes vasoconstriction (when the blood vessels get narrow) and that narrowing increases the blood pressure. the pressoreceptors are activated and it sends off signals which makes the arteries of the neck and chest which brings BP back up to normal.
What else can I help you with?
What type of bleeding is easiest to control?
Venous blood flow is easiest to control. Arterial blood flow is hardest to control because it is under pressure from the heart.
How do precapillary sphincters help regulate blood pressure and body temperature?
the Precapillary Sphincters control blood pressure and body temperature by regulating the flow of blood to the capillary bed.
How to stop wrist blood flow?
=We cannot stop blood flow, we can only control it!==To control blood flowing from an injury to the wrist - put some gloves on, wrap a bandage around the wrist to covor the injury, apply pressure to the injury site, elevate the injury higher than the heart and apply pressure to the brachial pressure point.=
How the muscles in an artery regulate blood flow?
There are no muscles in arteries. Arterioles have muscles which can close them, but which has no normal flow control. (Used is stress/shock conditions only) Capillaries have a muscle which can stop all flow through it - it responds to oxygen pressure and is the ultimate control of blood flow.
How do the muscles in an artery regulate blood flow?
There are no muscles in arteries. Arterioles have muscles which can close them, but which has no normal flow control. (Used is stress/shock conditions only) Capillaries have a muscle which can stop all flow through it - it responds to oxygen pressure and is the ultimate control of blood flow.
What technologies allow for the detection of blood flow and neural activitys of the brain?
foramen magnum
What is cerebral blood flow regulated by?
Cerebral blood flow is regulated by a combination of factors including blood pressure, carbon dioxide levels, neural activity, and metabolic demands of brain tissue. Specialized structures in the brain called the blood-brain barrier and autoregulation mechanisms help maintain a consistent blood flow to meet the brain's energy and oxygen requirements.
Intrinsic control of blood flow refers to the?
control of blood flow by metabolic products of the tissues
Do the aortic and pulmonary valves control the flow of the blood into the heart?
No, semilunar valves control the flow of blood out of the heart.
How can a caregiver control the flow of blood from a child's wound?
A caregiver can control the flow of blood from a child's wound by elevating the wound (if feasible) and by applying direct pressure. For instance, a caregiver can raise a child's arm over her head and apply direct pressure to the wound to decrease bleeding from a finger laceration.
Site where resistance to blood flow is the greatest?
The resistance to blood flow is greatest in arterioles, which are small blood vessels that regulate blood flow to tissues and organs. Arterioles have a high resistance due to their small diameter and ability to constrict or dilate to control blood flow distribution. This resistance plays a key role in regulating blood pressure and blood flow to different parts of the body.
Is the blood flow constant or depend on pressure-?
Blood flow remains constant in a persons body unless blocked.
