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Human Bio chapt 8

Human Bio

QuestionAnswer
non-cellular portion of blood(plasma), made up of what? water 91-92%, plasma proteins 7-8%, and solutes 1-2%(ions, sugar, lipids, amino acids, etc.)
Cellular portion - (formed elements), made up of what? Red Blood Cells (Erythrocytes), White Blood Cells (Leukocytes), Platelets
Blood made up of what? Plasma, blood cells, and cell fragments called platelets.
The average human body contains how many liters of blood? 4-5 liters - 6-8% of the body's weight
Plasma serves what purpose? Transports blood cells and platelets, and other plasma proteins.
Hemoglobin transports what? oxygen
hemoglobin is built with ? 4 linked polypeptide chains, each associated with a heme group which contain iron. (4 heme groups)
macrophages remove what from the blood? dying, damaged, or abnormal red blood cells
The kidney releases what in order to stimulate stem cells in bone marrow to make more red blood cells? erythropoietin
What is an antigen? A chemical characteristic of a cell, particle, or substance that causes the immune system to mount an immune response.
Agglutination is caused by what? By mixing incompatible blood types.
Hemostasis is ? the name of a process that stops bleeding and so helps to prevent excessive blood loss.
Intrinsic blood clotting: Protein, factor X is activated in blood stream which releases different enzymes to net the blood cells and platelets together and pull the town vessel walls back together.
Extrinsic clotting mechanism: Enzymes are released from tissue around the damaged area, which lead to formation of thrombin, and nets together the blood cells and platelets.
What happens during a stroke? A blood clot stops blood from getting to some part of the brain and that brain tissue dies.
Anemia: Red blood cells are not delivering enough oxygen to meet the body's needs.
Created by: taylorvv
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