Blood Composition Flashcards
What’s in blood
RBC
WBC
Platelets
Hormones
Plasma
Oxygen/carbon dioxide
Waste (urea)
What are the main functions of blood
Transport
Temp regulation
Immunity
Communication - hormones
Defence - clotting
What is the composition of Blood
Plasma (55% blood volume)
RBC
WBC
Platelets
How is RBC structure described
Biconcave, no nucleus/mitochondria/EPR
What type of protein is Hb
Globular
How long do RBC live
Around 120 days
Where are RBC made
Bone marrow
What are the functions of RBC
Carry oxygen/carbon dioxide
Oxyhaemoglobin
How many oxygen does each Hb carry
8 atoms/4 molecules
What is the name for process of cell production
Haematopoiesis
Where are RBC produced in adults
Red bone marrow in sternum, ribs, vertebrae, pelvis
What are the two main groups of WBC
Granular
Non-granular
What are the granular WBC
Neutrophil
Basophil
Eosinophils
What are the non granular WBC
Monocytes
Lymphocytes
What do basophils do
Secrete heparin and histamine in allergic response
What do neutrophils
Phagocytosis
What do eosinophils do
Combat parasitic infection/allergic response
What do monocytes do
Phagocytosis
Meaning of macrophage
Type of phagocyte that engulf/digest pathogenW
What do lymphocytes do
Immunity
Where are platelets made
Bone marrow
How long do platelets live
Under 7 days
What are platelets involved in
Homeostasis
What do platelets do
Blood clotting - clotting factors
What are the composition of plasma
CO2
Glucose
Amino acid
Protein
Ions
Vitamins
Hormones
Antibodies
Clotting factors
