Blood Lymph and Lymph Nodes Flashcards
List the fluid components of blood
Plasma which is made up of proteins, water and other solutes
List the cellular components of blood
Red blood cells (erythrocytes), white blood cells (leukocytes) and platelets (thrombocytes)
Define whole blood
The blood contained within the cardiovascular system. blood drawn directly from the body from which none of the components, such as plasma or platelets, has been removed.
Define peripheral blood
Peripheral blood is the flowing, circulating blood of the body. It is what is collected when blood samples are taken from people or animals for testing.
What is the difference between serum and plasma?
Serum is the liquid portion of whole blood minus clotting elements and plasma is the liquid portion of whole blood with clotting elements.
Where are blood cells produced?
In the bone marrow
What are the functions of red blood cells?
Transport of oxygen (O2) from the lungs to tissues and carbon dioxide (CO2) from the tissues to the lungs.
Describe the physical appearance of red blood cells in mammals
Biconcave discs with central pallor
How do red blood cells in birds and reptiles differ from those of mammals?
They have nuclei
List the different types of white blood cells
Neutrophils, eosinophils, basophils, monocytes and lymphocytes
Describe the function of neutrophils
The neutrophil is the main cell in the early stages of the response of the body to inflammation or infection. They engulf bacteria by phagocytosis and kill them.
Describe the function of lymphocytes
They are main cells in the adaptive immune system fighting infection either through blocking it with antibodies or killing infected cells
Describe the function of monocytes
They clean up cellular debris that remains after an infection/inflammation clears up
