Exam Three Flashcards
Functions of blood
transport
Protect
regulate
matrix
plasma
formed elements
Erythrocytes (RBC)
Leukocytes (WBC)
Platelets
Serum
remaining flood after blood clot
Blood Plasma Proteins
albumin
globulin
fibrinogen
Albumin
small, most abundant
buffers ph, blood volume, pressure, and flow
fibrinogen
frame work of a blood clot
viscosity
resistance of flow, bc of cohesion of particles
Osmolarity
molarity of dissolved particles that cannot pass thru blood vessel wall
hemopoiesis
production of blood
erythropoiesis
production of Erythrocytes (RBC)
functions of RBC
devoid internal structures
fermentation of ATP
characteristics of RBC
discoidal cell w a biconcave shape and think rim
cytoplasm of hemoglobin
hemoglobin carry how many oxygen
4
most common measurements
hematocrit
hemoglobin concentation
RBC count
RBC life cycle
live 120 days- produce 1mil/sec
reduction in cell size
increase in cell number
synthesis of hemoglobin
loss of nucleus and organelles
primary polycythemia
due to cancer of erythropoietic line of the red bone marrow
RBC counts 11 million
secondary polycythemia
all other causes (dehydration, high altitudes, exercise)
RBC counts 6-8 million
anemia
deficiency of RBCs
result–kidney failure
non nutritional anemia
hypoplastic anemia decline in erythropoiesis
aplastic anemia
cessation of erythropoiesis leads to tissue necrosis and blackening of skin
deadly if not treated
nutritional anemia
iron deficiency anemia
most common
pernicious anemia
deficiency of B12
rare, but not vegetarians
old age– stomach deterioration
sickle cell disease
hereditary hemoglobin defect
Africa
recessive allel modifies hemoglobin
antigen
molecules that are unique to everyone (except twins)
antibodies
proteins created by immune system as response to foreign matter
WBCs characteristics
least
nuclei stain purple
retain organelles thru out life
types of WBCs
granulocytes
Agranulocytes
leukopenia
low WBC count
lead, arsenic, and mercury poisoning
leukocytosis
high WBC count
indicated infection, allergy, or disease
leukemia
cancer of hemopoietic tissue, high amounts of WBCs
myeloid leukemia
uncontrolled granulocyte production
Leukopoiesis
forming of WBCs in bone marrow in adult bones and hematopoietic organs on fetus
acute
appears suddenly
chronic
develops slowly
hemostasis
cessation of bleeding