Blood

plasma

fluid component of blood

__% of clood is plasma

55%

hematocrit

percent of blood made up of red blood cells (RBC volume)

healthy hematocrit

45%

erythrocytes

red blood cells

RBC count

5 million per uL

buffy coat

leukocytes and platelets

hemoglobin

protein in RBC that binds O2

hemoglobin per RBC

2 million

white blood cell count

1000 per uL

lymphocytes

white blood cells

erythrocyte diameter

7 um

capillary diameter

7um

plasma is __% proteins

7%

hemoglobin concentration (g/dL)

15 g/dL

anemia

reduced O2 carrying capacity of blood

anemia caused by (2)

too few RBCs or too little Hb per cell

erythropoeitin

released by kidney to stimulate RBC production in bone marrow

why is kidney responsible for maintaining hematocrit?

kidney is always functional -> constantly monitoring

[Na+] in plasma

145mM

[K+] in plasma

4mM

[Ca2+] in plasma

2.5mM

albumin (% of plasma)

4.50%

globulins (% of plasma)

2.50%

fibrinogen (% of plasma)

0.30%

mature erythrocytes

sack of hemoglobin; no nucleus or ribosomes

leukocytes vs erythrocytes (size)

leukocytes > erythrocytes

leukocytes vs erythrocytes (number)

erythrocytes >>> leukocytes