HISTOLOGY
BLOOD VESSELS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Have partially permeable walls
|
|
|
One-cell thick endothelium
|
|
|
Presence of valves
|
|
|
Large lumen
|
Detailed explanation-1: -Capillaries have walls only one endothelial cell thick, meaning their walls are very thin. This makes them well adapted for gas exchange, as substances only have to diffuse over a short distance.
Detailed explanation-2: -This thin lining of the endothelium helps in transferring oxygen in an officiant manner. It also allows blood serum to exit in an efficient manner.
Detailed explanation-3: -One cell thick vessels are the blood vessels that join arteries and veins are the tiniest and most abundant blood vessels, called capillaries. They primarily serve the purpose of exchanging materials between the blood and tissue cells.
Detailed explanation-4: -Microscopic – walls are one cell thick, this allows for the diffusion of substances into the cells from the capillaries and out of the cells into the capillaries. Very low blood pressure.