HEMATOPOIETIC SYSTEM
The scientific field defined as the study of blood and blood-forming organs.
What is hematology?
The hormone produced by the kidney that stimulates the bone marrow's production of erythrocytes.
What is erythropoietin?
The movement of marginated leukocytes back into circulation in response to stress, exercise, or chemical signals like epinephrine.
What is demargination?
The combined three mechanisms—vascular spasms, platelet plugs, and stable fibrin blood clots—that work to prevent or control blood loss.
What is hemostasis?
This genetic disorder of red blood cell production primarily affects African-Americans and results in RBCs taking on a C, or sickle, shape.
This genetic disorder of red blood cell production primarily affects African-Americans and results in RBCs taking on a C, or sickle, shape.
The hematopoietic system consists of the blood, bone marrow, liver, spleen, and these organs.
What are the kidneys?
These biconcave discs transport oxygen from the lungs to the tissues and do not have a nucleus when mature.
What are red blood cells (RBCs) or erythrocytes?
The process by which white blood cells engulf and destroy foreign invaders.
What is phagocytosis?
The medical term for having too few platelets, which can lead to bleeding problems and blood loss.
What is thrombocytopenia?
This life-threatening crisis in sickle cell anemia is characterized by the blockage of blood flow to tissues and organs, causing pain.
What is a vasoocclusive crisis?
This substance is a thick, pale-yellow fluid that constitutes the liquid portion of the blood and is 90–92% water.
What is plasma?
This is the average life span of a normal red blood cell.
What is approximately 120 days?
The classic sign of a bacterial infection, indicated by an increase in circulating white blood cells to more than 16,000 per microliter of blood.
What is leukocytosis?
The organ that produces most clotting proteins, such as prothrombin and fibrinogen.
What is the liver?
The medical term for bleeding into a joint, a problem often developed by patients with blood clotting disorders like hemophilia.
What is hemarthrosis?
This is the specific mechanism by which plasma proteins help retain water in the capillaries.
What is osmotic pull (or oncotic pressure)?
This phenomenon describes how waste diffusing into the blood causes hemoglobin to give up more oxygen to the tissues.
What is the Bohr effect?
This type of granulocyte absorbs basic stains, resulting in blue granules, and stores histamine.
What are basophils?
This medication, classified as an antifibrinolytic, promotes blood clotting and may be used in trauma and surgery.
What is Tranexamic acid?
The specific type of blood, containing all cells, platelets, clotting factors, and plasma, used to replace blood loss from hemorrhage.
What is whole blood?
These chemical substances found in plasma are essential for nerve conduction, muscle contraction, and water balance.
What are electrolytes?
This substance has 210–250 times oxygen's affinity for hemoglobin, competing for the same binding sites.
What is carbon monoxide?
The specific subpopulation of lymphocytes responsible for developing cell-mediated, or cellular, immunity.
What are T cells?
The measurement that reports the packed cell volume of red blood cells per unit of blood, typically ranging between 40 and 52%.
What is hematocrit?
The blood type considered the universal recipient because its red blood cells have both A and B antigens but neither antibody.
What is Type AB blood?