lab #15 blood what are the parts of the blood? what are some diseases that affect human blood?

Lab #15 BloodLab #15 BloodWhat are the parts of the blood?What are the parts of the blood?

What are some diseases that What are some diseases that affect human blood?affect human blood?

TASK #1TASK #1

OBSERVING RED BLOOD CELLS, WHITE OBSERVING RED BLOOD CELLS, WHITE BLOOD CELLS AND PLATELETSBLOOD CELLS AND PLATELETS

Human Blood PartsHuman Blood Parts

Red Blood CellsRed Blood Cells (Erythrocytes = (Erythrocytes = scientific name)scientific name)–Carry oxygen (gas)Carry oxygen (gas)–Protein = Hemoglobin Protein = Hemoglobin – helps – helps

them hold on to the oxygenthem hold on to the oxygen–Most numerous Most numerous in a blood smearin a blood smear

Red Blood CellsRed Blood Cells

1.1. Draw one or two RBC’s Draw one or two RBC’s on your chart on page 2 on your chart on page 2 where it says drawings where it says drawings and labelsand labels

2.2. LabelLabel • Cell membraneCell membrane• CytoplasmCytoplasm

3.3. Number of cells in field Number of cells in field (count) = 100(count) = 100

Cell membrane

Cytoplasm

Human Blood PartsHuman Blood Parts

White Blood CellsWhite Blood Cells (Leukocytes = scientific name)(Leukocytes = scientific name)– Function in the immune systemFunction in the immune system– Much larger than RBC’sMuch larger than RBC’s– Least NumerousLeast Numerous– Surround and engulf bacteria = Surround and engulf bacteria = phagocytosisphagocytosis– Since they help fight infections a high number Since they help fight infections a high number

of them may indicate that you are sick and/or of them may indicate that you are sick and/or have a disease!have a disease!

White Blood CellsWhite Blood Cells

This is it!!

Cell membrane

Cytoplasm

Nuclear material

1.1. Draw one or two Draw one or two WBC’s on your WBC’s on your chart on page 2 chart on page 2 where it says where it says drawings and labelsdrawings and labels

2.2. LabelLabel::• Cell membraneCell membrane• CytoplasmCytoplasm• NucleusNucleus

• Number of cells in Number of cells in field (count) = 15field (count) = 15

Human Blood PartsHuman Blood PartsPlateletsPlatelets (Thrombocyte = (Thrombocyte = scientific name)scientific name)–Function in clottingFunction in clotting–““Dot-like” fragments scattered Dot-like” fragments scattered

throughout smearthroughout smear–Cell fragments, not cells!Cell fragments, not cells!–Next most numerousNext most numerous

PlateletsPlatelets

1.1. Draw some platelets on Draw some platelets on your chart on page 2 your chart on page 2 where it says drawings where it says drawings and labels.and labels.1.1. You DO NOT have to You DO NOT have to

label anything for these.label anything for these.

2.2. They are the little purple They are the little purple dots!!!dots!!!

3.3. ““t” stands for thrombocytet” stands for thrombocyte

2.2. Number of cells in field Number of cells in field (count) = 50(count) = 50

Human Blood PartsHuman Blood PartsPlasmaPlasma– Functions in transporting nutrients and Functions in transporting nutrients and

hormones.hormones.– Separates this way due to density.Separates this way due to density.– YellowishYellowish in color in color

1.1. On your lab, On your lab, sketchsketch the the test tube showing the test tube showing the separation of bloodseparation of blood

2.2. LabelLabel the parts of the the parts of the blood as shown in the blood as shown in the diagramdiagram

TASK #2TASK #2

Observing a healthy human Observing a healthy human blood smearblood smear

Human Blood SmearHuman Blood Smear

Identify:Identify:1.1. Red Blood cellRed Blood cell

• LabelLabel cell cell membranemembrane

• LabelLabel cytoplasmcytoplasm

2.2. WBCWBC• LabelLabel cell cell

membranemembrane• LabelLabel

cytoplasmcytoplasm• LabelLabel nucleus nucleus

3.3. PlateletsPlatelets

White blood cell

Magnification 800xMagnification 800x

TASK #3TASK #3

Observing common blood Observing common blood diseases and disordersdiseases and disorders

Leukemia SmearLeukemia SmearIdentify:Identify:1.1. Red Blood cellRed Blood cell


• LabelLabel cytoplasm cytoplasm2.2. WBCWBC

• NOTICE THAT NOTICE THAT THE THE NUCLEUSNUCLEUS IS MUCH IS MUCH BIGGERBIGGER!!


• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus


Diseased white blood cell


SICKLE CELL ANEMIASICKLE CELL ANEMIA



• LabelLabel cytoplasm cytoplasm2.2. Sickle cellSickle cell3.3. WBCWBC

• LabelLabel cell mem cell mem• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus



Mononucleosis SmearMononucleosis SmearIdentify:Identify:1.1. Red Blood cellRed Blood cell


• LabelLabel cytoplasm cytoplasm2.2. WBCWBC

• NOTICE THE NOTICE THE WATERY WATERY APPEARANCE OF APPEARANCE OF THE WBCTHE WBC

• LabelLabel cell membrane cell membrane• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus

3.3. PlateletsPlateletsMagnification 800xMagnification 800x

TASK #4TASK #4

Observing the blood of other Observing the blood of other vertebratesvertebrates

Frog BloodFrog Blood




2.2. WBCWBC• LabelLabel cell mem cell mem• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus


Platelet

Bird bloodBird blood




2.2. WBCWBC• LabelLabel cell mem cell mem• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus

3.3. PlateletsPlatelets• Just draw some Just draw some

dots!dots!

Red blood cell White blood cell

lab #15 blood what are the parts of the blood? what are some diseases that affect human blood?

Documents