Where are blood cells made?!
Question: Where are blood cells made? What are the functions of blood cells?
Tnks
Answers: Where are blood cells made? What are the functions of blood cells?
Tnks
Blood cells are made in the bone marrow. The bone marrow is the soft, spongy material in the center of the bones that produces about 95 percent of the body's blood cells.
There are other organs and systems in our bodies that help regulate blood cells. The lymph nodes, spleen, and liver help regulate the production, destruction, and differentiation (developing a specific function) of cells. The production and development of new cells is a process called hematopoiesis.
Blood cells formed in the bone marrow start out as a stem cell. A "stem cell" (or hematopoietic cell) is the initial phase of all blood cells. As the stem cell matures, several distinct cells evolve such as the red blood cells, white blood cells, and platelets. Immature blood cells are also called blasts. Some blasts stay in the marrow to mature and others travel to other parts of the body to develop into mature, functioning blood cells.
The primary function of red blood cells, or erythrocytes, is to carry oxygen and carbon dioxide. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.
The primary function of white blood cells, or leukocytes, is to fight infection. There are several types of white blood cells and each has its own role in fighting bacterial, viral, fungal, and parasitic infections. Types of white blood cells that are most important for helping protect the body from infection and foreign cells include the following:
+ neutrophils
+ eosinophils
+ lymphocytes
+ monocytes
+ granulocytes
White blood cells:
+ help heal wounds not only by fighting infection, but also by ingesting matter such as dead cells, tissue debris, and old red blood cells.
+ are our protection from foreign bodies that enter the blood stream, such as allergens.
+ are involved in the protection against mutated cells, such as cancer.
The primary function of platelets, or thrombocytes, is blood clotting. Platelets are much smaller in size than the other blood cells. They group together to form clumps, or a plug, in the hole of a vessel to stop bleeding.
Bone marrow I think.
Deliver oxygen and nutrients to body and transport wastes out, and to fight foreign / toxic substances
Definately the bone marrow.
Red blood cells contain a compound called haemoglobin. This has the ability to hold and release oxygen on demand. Red blood cells use this to transfer oxygen from the lungs, where it is collected, to the rest of the body where it is needed for respiration.
That is, of course, just red blood cells. Other cells, like white blood cells, are not just made in the bone marrow but in lymph nodes etc. I just assumed you were asking about red cells :)
Blood cells are made in the bones in the material known as bone marrow. The red blood cells (RBC) function is to carry oxygen throughout the body to the other cells and organs. They also carry away CO2 and wastes. It's pretty neat that the RBC pick up oxygen at the lungs in the capillaries and then drop off the C02 at the lungs too to leave our body when we exhale. White blood cells (WBC) function to do many things, mostly kill of germs and fight infection. There are many types of WBC like leukocytes & phagocytes... each has their own unique job like phagocytes eat up germs, engulf them and destroy them. It's really interesting and if you're interested, you should do some looking around on the net, you'll find tonnes of info.