Blood

specialized connective tissue

erythrocytes: red blood cells that transport oxygen

buffy coat: leukocytes and platelets: 1%

plasma: 55%

hematocrit: percent of red blood cells

males: 47% plus or minus 5%

females: 42% plus or minus 5%

scarlet: oxygen rich

dark red: oxygen poor

pH of 7.35-7.45

temp @100.4

accounts for @8% of body weight

M: 5-6 L

F: 4-5L

Distribution

delivering oxygen from lungs and nutrients from digestive tract to all body cells

transporting metabolic waste products

transporting hormones

Regulation

maintaining body temp

maintaining pH

maintaining adequate fluid volume

Protection

preventing blood loss

preventing infection