by means o chorva
Yes, Diapedesis is a process by which "white blood cells" escape from the capillaries into the tissue spaces, but not RBCs and Platlets.
When white blood cells leave the capillaries, this process is called diapedesis or extravasation. It allows white blood cells to move from the blood vessel into the surrounding tissues to reach sites of infection or inflammation.
The round cells that move in the blood capillaries are called RED BLOOD CELLS.
Materials needed by the cells move from the blood into the cells, and waste materials move from the cells into the blood.
The squeezing of white blood cells from capillaries into body tissues is called diapedesis or extravasation. This process allows white blood cells to move out of the bloodstream and into tissues where they can respond to infection or injury. It is an essential part of the immune response, facilitating the delivery of immune cells to areas where they are needed.
Capillaries
Blood does not move faster through the capillaries. Blood flow is slowest in the capillaries.
The blood cells must move through the capillaries in a single file line because the diameter of the capillary is only slightly larger than the diameter of the blood cells - there isn't room for two blood cells to go through side by side.
Red blood cells do not "move files." Instead, they circulate throughout the body to transport oxygen from the lungs to tissues and remove carbon dioxide for excretion. This process occurs in the bloodstream as the cells travel through the arteries, capillaries, and veins.
Materials are exchanged between the blood in the capillaries and the blood cells primarily through the process of diffusion. Oxygen and nutrients pass from the capillaries into the blood cells, while carbon dioxide and metabolic waste move from the blood cells into the capillaries. This exchange occurs across the thin walls of the capillaries, which are permeable to these substances, allowing for efficient transfer due to concentration gradients. Additionally, facilitated diffusion and active transport mechanisms can assist in this exchange for specific substances.
more rapidly, in the capillaries the blood cells flow in "single file". In the veins, multiple cells are allowed to pass at once
white blood cells