The vascular system signals for blood vessels to constrict or dilate. The nervous system, such as the spine, and the brain, work together to help blood vessels respond accordingly.
vasomotor system system of autonomous nervous system.
Parasympathetic
afferent arteriole
The coronary artery.
GH
The Vein does not bring blood to the Heart.
not directly but there are blood vessels in between fibers and blood cells are in the vessel.
capillaries
The left ventricle.
Directly no - but indirectly yes. Many drinkers suffer from ulcers that will bleed when drinking.
Dilation of a blood vessel is the term for physiologic widening of the vessel. Abnormal widening of the blood vessel through a weakening of the wall is known as aneurysm.Dilation of a blood vessel means widening of the vessel.
Directly through the bacteriophagic function by macrophages, lymphocytes etc and indirectly by immunity
Blood vessel on the bottom of a worm Blood vessel on the bottom of a worm
Damage to the blood vessel.