Because red blood cells have no means of leaving the blood vessels. They are too large to fit through the openings of fenestrated capillaries, and have no other method of extravasation either (unlike white blood cells). Even though white blood cells are larger, the are capable of changing their shape to fit through the tiniest of openings, and can also move on their own. Red blood cells are merely swept along with the current.
Bacteria and dead cells are removed from lymph within lymph nodes, which are small bean-shaped structures located along the lymphatic vessels. Lymph nodes contain immune cells that help filter and eliminate these harmful substances from the lymph fluid before it is returned to the blood circulation.
lymph
The lymphatic system includes organs and cells that filter lymph and blood and destroy foreign microorganisms. Lymph leaks out of capillaries to bathe body cells and circulates among tissue cells and the heart. Organs of the lymphatic system contain lymphatic tissue, Lymphocytes, a few other cell types, and connective tissue.
The lymph
T-cells and B-cells are both initially made in the bone marrow. T-cells mature in the thymus. They both freely float around in all lymph nodes and the various lymph organs (e.g., tonsils, spleen...).
yes
Yes, lymph contains white blood cells, as well as salts, water, and large molecules
Erythrocyctes are red blood cells / lymphocites are white blood cells- plasma is is the yellowy clear fluid which transports the above around the body (along with platelets which clot the blood) Lymph fluid is derived (from plasma alone) in the blood but does carry a few occassional red cells across in the process to the lymphatic system. Erythrocytes are very flexible and slip their way through This is how i recall it in my `in a nutshell fashion` - .
White blood cells Hope it helped!
no
Bacteria and dead cells are removed from lymph within lymph nodes, which are small bean-shaped structures located along the lymphatic vessels. Lymph nodes contain immune cells that help filter and eliminate these harmful substances from the lymph fluid before it is returned to the blood circulation.
The aged red cells self destruct in the spleen , where they squeeze through the red pulp of the spleen. When the spleen is removed, the number of abnormal red cells and old cells circulating in the blood increases considerably.
Lymph comes from the interstitial fluids spaces in blood where interstitial fluid is found. Lymph is composed mainly of white blood cells.
lymphocytes, which help the body fight infections and diseases.
Lymph nodes are packed full of white blood cells, usually lymphocytes.
if bacteria enter a wound and are not ingested by the white cells of the blood or lymph,they will be carried in the lymph to a lymph node and white cells there will ingest them
Lymph nodes filter lymph fluid to remove foreign particles, such as bacteria or viruses, and also produce immune cells to help fight infections. They contain a network of lymphocytes and macrophages that detect and respond to pathogens to prevent them from spreading throughout the body.