Question

what is capillaries​

Answer 1

Hey mate,

These are the blood vessels that form a network between arteies and veins... ========plz. Mark it as brainliest answer=======

Answer 2

Answer :-

In general terms, "Capillaries" can be defined as the connections between veins and arteries.

Extra Information :-

• Capillaries were discovered by an Italian physician and biologist - "Marcello Malpighi".

• Capillaries are the smallest, microscopic blood vessels in the body.

• A "Metarteriole" is a vessel that emerges from an arterial end and supplies a group of 10 to 100 capillaries that constitute a "Capillary bed".

• Capillaries don't have any muscular walls.

• Capillaries are made up of a single layer of flat "Endothelial cells".

• Capillaries are permeable to water and some other small solutes (known as exchange vessels).

• Capillaries are not permeable to proteins and other macromolecules.

• The diameter of one lumen of capillaries varies from 7.5 micrometer to 75 micrometer.

• Only about 5% to 7% of the total volume of blood is contained in the capillaries.