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What is the effect of increased vessel length on blood flow?
The longer the vessel is the more friction it applies on the passing blood, the less the blood flow is.
Thin-walled blood vessels less elastic than arteries?
aorta
What lobe in the brain affected when you have migraine?
All of them can be affected. It is really the blood vessels that are affected which then can affect any of the lobes when there is less oxygen in the blood vessel due to the swelling of the blood vessel wall.
What is the difference between an artery and a vein and what do they do?
Arteries are more elastic but have smaller lumen. They carry blood away from the heart. Veins are less elastic have larger lumen and have valves. They carry blood to the heart.
What causes the transfer of materials between capillaries and tissue fluid?
As blood enters the capillary bed on the arteriole end, the blood pressure in the capillary vessel is greater than the osmotic pressure of the blood in the vessel. The net result is that fluid moves from the vessel to the body tissue.At the middle of the capillary bed, blood pressure in the vessel equals the osmotic pressure of the blood in the vessel. The net result is that fluid passes equally between the capillary vessel and the body tissue. Gasses, nutrients, and wastes are also exchanged at this point.On the venue end of the capillary bed, blood pressure in the vessel is less than the osmotic pressure of the blood in the vessel. The net result is that fluid, carbon dioxide and wastes are drawn from the body tissue into the capillary vessel.
Which blood vessel renal artery or renal vein contain less nitrogenous waste?
Renal vein.
What is the effect that radius changes have on the laminar flow of a fluid?
Laminar flow is the free-flowing blood in the middle of the vessel. Therefore, larger the radius of vessel, more the laminar flow. Smaller the radius of vessel, lesss the laminar flow. Laminar flow is directly reltated to the radius of a vessel.
Why do veins have less collagen elastic fibers and smooth muscles than arteries?
Because blood in veins is under lower pressure than in arteries, so they do not need as many collagen fibres. In addition, as veins already have a wide diameter, they do not need to dilate that much hence they also dont contract that much (as opposed to artieries), so they have less elastic recoil, thus they have less elastic fibres. :)
Do blood vessels increase in size to lose heat?
If a blood vessel has a larger diameter then there is an increased rate of blood flowing through that vessel per unit of time. This increased rate causes an increase in heat through the vessel. Thus constricting the diameter of the blood vessel will cause a decrease in the rate of blood flow, causing less heat and therefore increased heat loss.
What are the signs and symptoms of high blood pressure?
The researchers think that the higher the pulse pressure, the stiffer the blood vessels. The stiffer the blood vessel, the less likely the nerve endings are working properly. If the nerve endings aren't functioning correctly, the less likely a person will feel pain.
What is the consequences for the umbilical cord not to have 3 vessel cords?
The feotus will get blood/nutrients less easily from mother as less vessels means a smaller flow of the babies vital nutrition. The extent of this however, depends on the stage of pregnancy, missing vessel and personal case - see doctor to seek advice
How do you use 'vessel' in a sentence?
Keep your vessel at five knots or less while in the channel.
