chapter 37-2 Flashcards
what does blood contain
dissolved substances and specialized cells
what are the functions of blood
collecting oxygen from the lungs, nutrients from the digestive tract, and wast products from tissue
regulate body’s internal environment
fight infections
repair blood vessels
how many liters of blood are in the body
4-6
what is plasma
a straw colored fluid
what are the three plasma protein groups
albumins
globulins
fibrinogen
function of albumins and globulins?
transport substances such as fatty acids, hormones, and vitamins
what does fibrinogen do
is the protein that clots blood
what does the cellular portion of blood consist of
red/white blood cells
platelets
what is the red blood cells function
to transport oxygen
what is hemoglobin
an iron containing protein that transports oxygen from the lungs to tissue of the body
red blood cell characteristics
produced in red bone marrow
no nuclei
live for about 120 days
white blood cell characteristics
no hemoglobin
less common then red cells
produced in bone marrow contain nuclei
white blood cells may live for days, months, or years.
white blood cells function
guard against infection
fight parasites
attack bacteria
how is blood clotting made possible
by plasma proteins and platelets
what is the function of the lymphatic system
collect fluid that is lost by the blood and returns is back to the circulatory system
