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Name 3 factors that are important in promoting venous return?
Larger lumens of veins with valves, Skeleton muscle activity and Respiratory pumpThree factors that are important in promoting venous return are:1. Intact system2. Good pump - valves - size of vessels - PR3. Breathing - respiratory pump
Is a check valve the same as a non return valve?
yes
Leaky capillaries found in the bone marrow are called?
sinusoidal capillaries
Exchange of nutrients and gases between the blood and tissue cells?
capillaries is where the exchange of materials occur such as; gases,nutrients, hormones, and so on.between the blood and the interstitial fluid.
What is red line in fingernails?
If the red lines run in the direction of the growth of the nail, they are called splinter hemorrhages as they look like a red splinter under the nail. The hemorrhages may be caused by tiny clots that damage the small capillaries under the nails. They can be a sign of a number of diseases: infection of the heart valves called endocarditis, damage from swelling of the blood vessels (vasculitis) or tiny clots that damage the small capillaries (microemboli).
Do arterioles contain non return valves?
you find non return valves inside the heart, lymph and veines, avoiding fluids from flowing backwards > [veinous blood in veines and heart, oxygenated blood in the heart]. Lymph vessels have valves also. The portal vein though contains no valves. All arteries including arteriols and capillaries have no valves.
Do capillaries have valves?
yes lymph capillaries hav semilunar valves
Do capilliaries have valves?
Capillaries do not have valves. Veins are the blood vessels with valves.
How many valves capillaries?
Well the capillaries produce the more the body moves. If someone is running a marathon for example, the capillaries will start to reproduce to help get the blood moving. And capillaries dont have valves.
Do capillaries have valves to regulate blood flow?
Capillaries do not have valves to regulate blood flow. Veins are the vessel of the circulatory system that have veins to regulate blood flow.
What is the role of the mini-valves in lymph capillaries?
Increase permeability
Why are bilge valves closed after bilges?
there are valves on bilge pumps so that if there are traces of oil in the bilge water, the valves will close so that the oily water will not be discharged overboard. The valves are required to be screw down non-return valved
Why non return valve is fitted on the suction side of the multistage Grundfos pumps?
I'm not famiar with the Grundfos valves specifically, but non-return valves are usually fitted to the suction side of pumps to prevent the pump from losing it's prime when it is stopped (by draining back through the inlet).
Do capillaries collect plasma and return it to the blood?
yes
What is the relationship between valves in veins and lymphatic capillaries and gravity?
The valves help counter the effect of gravity by preventing the fluid in the vessels from "falling down."
Which vessels collect blood from the capillaries and return it to the heart?
Veins
Why do lymphatic capillaries have valves in them?
Valves in veins are one way valves in the tunica intima(endothelium) of the drainage vessel. They allow the blood to defy gravity and continue circulating up towards the heart to dump into the inferior/superior vena cava. They ensure that blood travels the direction it is supposed to, and does not fall back the wrong way. Lymphatic capillaries are part of the capillary exchange that occurs from artery->artierole->CAPILLARY DIFFUSION->venule->vein->heart. they are an accessory drainage system, beginning blindly in the body and eventually meeting up with the vein again.
