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In which blood vessels does diffusion occur?
Capillaries.
When do ischemic strokes occur?
Ischemic strokes occur due to blood vessels becoming blocked while hemorrhagic strokes are the result of broken blood vessels in or near the brain.
Damage to the small blood vessels can cause what to occur?
The organism not only damages the blood vessels by causing them to leak, but also causes clotting inside the vessels.
In blood vessels where does the greatest pressure drop occur?
the arterioles
What happens when blood vessels weaken?
Some weakened blood vessels will swell or worse they can break. If the break happens in the brain a type of stroke can occur.
What structure is known as the functional unit of the cardiovascular system?
The capillary is known as the functional unit of the cardiovascular system. Capillaries are small blood vessels where gas exchange and nutrient exchange occur between the blood and tissues. This exchange is essential for delivering oxygen and nutrients to cells and removing waste products.
What is the name of the blood vessels that carry arterial blood into the capillary bed where filtration will occur?
loop of Henley
Why does redness occur during injury?
Redness is a vasodilatation of nearby undamaged blood vessels.
Cerebrovascular disease refers to a group of conditions that do what?
Cerebrovascular Disease refers to a group of conditions that come together to collectively affect blood flow to blood vessels in the brain, which can occur from narrowing of blood vessels and even the formation of blood clots.
Do hemorrhoids get hard?
No. Hemorrhoids are caused by dilation of blood vessels. This can occur from excessive straining or exertion.
What are diseases of the cardiovascular system that are associated with aging?
arteriosclerosis-hardening of the arteries, atherosclerosis-fat deposits in the blood vessels narrowing the inner surfce, and high blood pressure. All or any of these causes the heart to work harder thereby causing cardiovascular disease. and, of course, Alzheimer's Disease-formation of plaques in the brain causing neurological deficits and physical deteriation.
In which type of vessels does gas exchange between blood and tissues occur to the greatest extent-veins?
The capillaries
