this from katznug pharma( almost all vessels contain
endothelial muscarinic receptors that mediate vasodilation
These receptors are readily blocked by antimuscarinic drugs.
At toxic doses, and in some individuals at normal doses, antimuscarinic agents cause cutaneous
vasodilation, especially in the upper portion of the body. The mechanism is unknown)
Low oxygen levels cause vasodilation in systemic arterioles.High oxygen levels cause vasodilation in capillaries in the lungs.
Epinephrine can cause vasodilation provided the level is low enough. If beta-2 recptors are activated (without the level of epinephrine being high enough to involve the significant numbers of alpha receptors), then the effect of epinephrine on the vascular smooth muscle be relaxation, thus, dilation. However, higher levels of epinephrine will activate alpha receptors which will cause vasoconstriction.
no.
Vasoconstriction and Vasodilation are a part of a body negative feedback, in which the body tries to restore homeostasis. Homeostatis is the function of keeping the internal body at it's general temperature (37 degrees Celsius). Without the negative feedback of Vasoconstriction and Vasodilation, the body would either be at a very low or very high temperature and this high/low temperature could cause death.
diabities
Can having high prolactin and what is considered to be high level cause cancer
High levels of silica cause magma to be more viscous
Healthy kidneys cause a high GFR level.
Automobiles, burning of matter and using of natural resources at an exploiting level cause much pollution.
Yes.
high-level
yes