Lab #16 BloodLab #16 Blood

What 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)– Carry oxygenCarry oxygen– Most numerous in blood smearMost numerous in blood smear

1.1. Draw one or Draw one or two RBC’s on two RBC’s on your chart on your chart on page 2page 2

2.2. LabelLabel • Cell Cell

membranemembrane• CytoplasmCytoplasm

3.3. CountCount: 100: 100

Cell membrane

Cytoplasm

Human Blood PartsHuman Blood Parts

White Blood CellsWhite Blood Cells (Leukocytes) (Leukocytes)– Function in the immune systemFunction in the immune system– Much larger than RBC’sMuch larger than RBC’s

1.1. Draw one or Draw one or two WBC’s two WBC’s on your chart on your chart on page 2on page 2

2.2. LabelLabel • Cell Cell

membranemembrane• CytoplasmCytoplasm• NucleusNucleus

• CountCount: 15: 15

Cell membraneNuclear material

Cytoplasm

Human Blood PartsHuman Blood PartsPlateletsPlatelets– Function in clottingFunction in clotting– ““Dot-like” fragments scattered throughout Dot-like” fragments scattered throughout

smearsmear– Cell fragments, not cells!Cell fragments, not cells! 1.1. Draw some Draw some

platelets on platelets on your chart on your chart on page 2page 21.1. ““t” stands for t” stands for

thrombocytethrombocyte

2.2. CountCount: 50: 50

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

hormoneshormones– Yellowish in colorYellowish in color 1.1. On your lab, On your lab,

sketchsketch the the test tube test tube showing the showing the separation of separation of bloodblood

2.2. LabelLabel the the parts of the parts of the blood as blood as shown in the 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 mem cell mem• 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 cell cell membranemembrane

• LabelLabel cytoplasm cytoplasm2.2. WBCWBC

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

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

3.3. PlateletsPlatelets

Diseased white blood cell

SICKLE CELL ANEMIASICKLE CELL ANEMIA

Identify:Identify:1.1. Red Blood cellRed Blood cell

• LabelLabel cell cell membranemembrane

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

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

4.4. PlateletsPlatelets

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

• LabelLabel cell cell membranemembrane

• LabelLabel cytoplasm cytoplasm2.2. WBCWBC

• NOTICE THE NOTICE THE WATERY WATERY APPEARANCE APPEARANCE OF THE WBCOF THE WBC

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

3.3. PlateletsPlatelets

TASK #4TASK #4

Observing the blood of other Observing the blood of other vertebratesvertebrates

Frog BloodFrog Blood

Identify:Identify:1.1. Red Blood cellRed Blood cell

• LabelLabel cell cell membranemembrane

• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus

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

3.3. PlateletsPlatelets

Bird bloodBird blood

Identify:Identify:1.1. Red Blood cellRed Blood cell

• LabelLabel cell cell membranemembrane

• LabelLabel cytoplasm cytoplasm• LabelLabel nucleus nucleus

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!