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Blood pressure increases if the diameter of the blood vessel decreases.
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How does smooth muscle make blood vessels function?
Smooth muscle is mostly in the afferent branch going from the arteries to the arterioles. The body controls where blood will flow by controlling the vessel diameter. An increase in sympathetic tone constricts smooth muscle, decreases blood vessel diameter, and limits blood flow.
What effect does local heat application have on blood vessel diameter?
Vasodilation or enlargement of the blood vessel
What is Vasolidation?
increase in the diameter of blood vessel. it increases the blood flow
A decrease in the diameter of a blood vessel is termed?
vasoconstriction.
How does lactic acid affect blood vessel size?
It decreases the size.
What are the main factors that contribute to total peripheral resistance?
Blood vessel diameter,blood viscosity and total vessel length
Which blood vessel tunic is composed of smooth muscle and controls the diameter of the vessel?
Tunica interna
Hoe does SVR affect blood pressure?
The resistance offered by the peripheral circulation is known as the systemic vascular resistance (SVR). Vasoconstriction (i.e., decrease in blood vessel diameter) increases SVR, whereas vasodilation (increase in diameter) decreases SVR. this constriction and dialation decreases or increases the volume in which the vessles can potensially hold. the blood pressure is subsequantly altered as more or less vascular space is provided.
Would doubling the length of a blood vessel have the greater effect on vascular resistance?
In which of the following would the blood flow be highest? A) a vessel 0.5 cm in diameter and 4 meters long B) a vessel 1.0 cm in diameter and 10 meters long C) a vessel 0.5 cm in diameter and 2 meters long D) a vessel 1.0 cm in diameter and 2 meters long
What is the increase of diameter in a blood vessel called?
Vasodilation: Widening of blood vessels resulting from relaxation of the muscular wall of the vessels. What widens is actually the diameter of the interior (the lumen) of the vessel. The opposite of vasoconstriction.
Lumen is the size of red blood cells?
The lumen is the size of the inside of the blood vessel. The type of blood vessel that has a lumen approximately the same diameter as a single red blood cell is a capillary.
What happens if a blood vessel in the coronary blood supply blocks?
If the blood vessel is blocked , it then leads to a serious problem like a heart attack.
