blood Flashcards
functions of blood
transports - water/nutrients/hormone/gases
assists in temperature and pH regulation
defends against disease
what is the blood made of
special type of connective tissue
cells (formed elements) + fluid matrix (plasma)
what are the proteins the plasma is made of
Albumin
Globulins
Clotting factors
Albumin
60%
exerts osmotic pressure, transports, maintains pH
Globulin
36%
lipoproteins (lipid transport)
gammaglobulins (antibodies)
Clotting factors
4%
fibrinogen
plasma
water, proteins, nutrients, ions, gases, wastes, hormones,
3 types of blood cells
erythrocytes
leukocytes
thrombocytes
erythrocytes
RBC
transport oxygen
no nucleus
has a large surface area for gas exchange
can form stacks for smooth flow through capillaries
flexibility to make movement through small vessels easier
leukocytes
WBC
large
nucleated
immune function to protect from pathogens
disposal of dead/diseased old cells
5 types of leukocytes
neutrophils
lymphocytes
monocytes
eosinophils
basophils
neutrophils
granulocytes
most common
elevated with bacterial infections
secrete chemicals that mobilize immune defence mechanism/trigger inflammation
phagocytize bacteria
eosinophils
granulocytes
secrete enzymes to kill parasites
elevates with parasitic infections and allergies
release anti-inflammatory chemicals
phagocytize antibodies
basophils
granulocytes
elevates with inflammation/allergies
secrete an anticoagulant
secrete inflammatory chemicals
lymphocytes
agranulocytes
T cells + B cells
recognize specific antigens; produce antibodies that target the pathogens
elevated with viral infections
