0
nice
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Does capillaries have a lumen?
Yes, they are very narrow (1 Red Blood Cell in diameter).yes.they have lumen so that erythrocytes can moves through theb,
Is the diameter of the lumen larger in arteries or in capillaries?
Arteries have the largest diameter, then arterioles, and last, capillaries.
What blood vessel has the widest lumen?
The aorta is the blood vessel with the widest lumen. In contrast, capillaries are the blood vessels with the narrowest lumen.
Vasoconstriction means that the lumen of the blood vessels gets?
Narrow
What are the three capillaries?
Continuous-Fenestrated-Sinusoids Capillaries D.
Why is capillaries narrow?
Capillaries are very small in size because they need to have a large surface area so they are able to transport blood all around the body. Blood cells must pass in single file through the capillaries as they are so small.
How is a capillaries structure adapted to its function?
They are situated in between the arteries and veins. Since they are situated in between this two tissues they facilitate the exchange of substances between them.They have thin walls .The thin walls allow them to quickly and easily allow substances to diffuse through or pass through themThey have a very narrow lumen. The narrow lumen encourages red blood cells to give up oxygen as they squeeze by body tissues
What do arteriolie's do?
They are a very small and narrow blood vessel. Smaller than an artery, they carry blood to the capillaries which carry blood to the cells of the body.
What are the most narrow blood vessels?
Capillaries. They're so small that red blood cells are sometimes forced to travel single-file.
What Small blood vessels connect the arteries?
Arteries - > Arterioles -> Capillaries
What is the structure of the veins capillaries and artery?
Just simply mentioning the structure: Arteries High blood pressure (not sure if that counts as structure) Thick outer wall Thick layer of elastic-muscle fibre Narrow central tube (lumen) Smooth lining so no obstruction of blood flow Veins Low blood pressureThin outer wallThin layer of inelastic muscleWide central tube (lumen)Have flaps of valves Capillaries One cell thick wall Highly branched networks Pores in the walls between cells
Can you describe arteries capillaries and veins?
Arteries have thick walls that carry blood from the heart to different parts of the body. Veins have thinner walls that carry non-oxygenated blood to the heart. Capillaries are extremely thin walls that join arteries to veins.
