Blood & Lymph Blood & Lymph NotesNotes

Blood is Blood is unique unique because it because it is the only is the only liquid liquid tissue.tissue.

Main functions of Main functions of blood…blood…-delivers -delivers

nutrientsnutrients & & oxygenoxygen to cells to cells

-carries -carries carbon carbon dioxidedioxide & & wasteswastes from cellsfrom cells

-clots to help -clots to help heal heal woundswounds & &

helps fight helps fight diseasedisease or or infectioninfection

-helps regulate -helps regulate bodybody

temperaturetemperature

Blood is made up Blood is made up of… of…

White blood cellsWhite blood cells

Red blood cellsRed blood cells

PlasmaPlasma

PlateletsPlatelets

liquid part of the liquid part of the blood that carries blood that carries

carbon dioxidecarbon dioxide from body cells to from body cells to

lungs for lungs for exhalation.exhalation.

Plasma…Plasma…

pick up oxygen pick up oxygen in lungs & in lungs &

carry it to the carry it to the body cells…body cells…

Red blood Red blood cells…cells…

……made up of made up of hemoglobinhemoglobin which turns which turns bright red when bright red when it binds with it binds with oxygen…oxygen…

……lack a lack a nucleusnucleus so so they cannot they cannot reproduce so new reproduce so new cells are made in cells are made in the the bone marrowbone marrow..

are also made are also made in the bone in the bone

marrow & are marrow & are the bodies the bodies

disease disease fightersfighters……

White blood White blood cells…cells…

……they can they can kill disease-kill disease-causing causing organisms organisms by releasing by releasing antibodies.antibodies.

Cell fragments Cell fragments that cause blood that cause blood

to to clotclot to stop to stop bleeding… bleeding…

PlateletsPlatelets

protein markers (A protein markers (A & B) on red blood & B) on red blood cells that determine cells that determine a person’s blood a person’s blood types and types and stimulates the stimulates the production of production of antibodies…antibodies…

AntigensAntigens

Four types of Four types of blood… blood…

A, B, AB, OA, B, AB, O..

……knowing your knowing your blood type is blood type is important in case important in case you ever need a you ever need a blood transfusionblood transfusion where they transfer where they transfer blood from one blood from one person to another.person to another.

……antigens in the antigens in the blood must match blood must match or proteins in the or proteins in the plasma will plasma will clumpclump

together (**together (**so they so they cannot flow or cannot flow or

carry materialscarry materials).).

network of vein-network of vein-like vessels that like vessels that return fluid to return fluid to the blood that the blood that

leaks our of the leaks our of the blood vessels.blood vessels.

Lymphatic Lymphatic system…system…

is what the fluid is is what the fluid is called once it called once it leaves the blood leaves the blood vessels & is made vessels & is made up of water, white up of water, white blood cells & blood cells & dissolved dissolved materials…materials…

Lymph…Lymph…

……no organ to no organ to pump it so it pump it so it

moves slowly & is moves slowly & is connected to connected to

large large veinsveins in the in the chest… chest…

lymph passes lymph passes lymph nodes lymph nodes (“glands”) (“glands”) which which trap bacteria & trap bacteria & other other microorganisms microorganisms that cause disease that cause disease causing them to causing them to swell.swell.

HumHuman an

lymplymph h

nodenodess