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Autonomic tone of peripheral blood vessels would be greatest when?
When sympathetic stimulation is increased.
Name two factors that increase peripheral resistance?
Peripheral resistance can be increased by an increase in blood volume and the constricting of blood vessels.
Would vasoconstriction decrease peripheral resistance?
No, vasoconstriction would increase peripheral resistance. When blood vessels constrict, the diameter of the blood vessels becomes smaller, which increases resistance to blood flow. This can lead to an increase in blood pressure.
What does peripheral blood vessels mean?
Peripheral means "at the edge". The blood vessels further away from the heart.
What does alcohol do to blood vessels?
Vasodilates them. Arteries increase in diameter size, this reduces the peripheral resistance on the blood. Not necessarily a good thing.
What is a dose dependent peripheral vascular effect?
A dose dependent peripheral vascular effect relates to dependance of drug which may increase contraction or relaxation of vessels or contracting tissue depending on the type of drug given.
Peripheral vascular diseases are disorders of the blood vessels that are located outside of the heart and brain?
Peripheral vascular disease is disease of the blood vessels of the peripheries i.e. the limbs. Atherosclerosis, how ever is a generalised disease and other vessels are also involved
What is the large peripheral blood vessels into which extra-embryonic blood vessels open?
vitilline vein
What in tobacco constricts blood vessels?
Nicotine is the blood vessels' constrictor. Not all blood vessels, of course, but mainly the peripheral blood vessels, including the brain capillary blood vessels.
What is main site of peripheral resistance?
arterioles offer maximum peripheral resistance .Skin and skeletal muscle blood vessels represent most imp. site of peripheral resistance.
What condition causes increased rigidity of peripheral blood vessels with age?
arteriosclerosis
Explain why the autonomic nervous system mediates the increase in blood flow to skeletal muscles?
Blood flows through the circulatory system based on the pressure and resistance of those vessels. The nervous system helps to measure this, and adjusts how the vessels are compressed by the surrounding muscles based on how needed oxygen is to those muscles.
