1. Lab #15 Blood What are the parts of the blood?
What are some diseases that affect human blood?

2. OBSERVING RED BLOOD CELLS, WHITE BLOOD CELLS AND PLATELETS
TASK #1
OBSERVING RED BLOOD CELLS, WHITE BLOOD CELLS AND PLATELETS

3. Red Blood Cells (Erythrocytes = scientific name)
Human Blood Parts
Red Blood Cells (Erythrocytes = scientific name)
Carry oxygen (gas)
Protein = Hemoglobin – helps them hold on to the oxygen
Most numerous in a blood smear

4. Red Blood Cells
Draw one or two RBC’s on your chart on page 2 where it says drawings and labels
Label
Cell membrane
Cytoplasm
Number of cells in field (count) = 100
Cell membrane
Cytoplasm

5. White Blood Cells (Leukocytes = scientific name)
Human Blood Parts
White Blood Cells (Leukocytes = scientific name)
Function in the immune system
Much larger than RBC’s
Least Numerous
Surround and engulf bacteria = phagocytosis
Since they help fight infections a high number of them may indicate that you are sick and/or have a disease!

6. White Blood Cells
Draw one or two WBC’s on your chart on page 2 where it says drawings and labels
Label:
Cell membrane
Cytoplasm
Nucleus
Number of cells in field (count) = 15
Cell membrane
Nuclear material
This is it!!
Cytoplasm

7. Platelets (Thrombocyte = scientific name)
Human Blood Parts
Platelets (Thrombocyte = scientific name)
Function in clotting
“Dot-like” fragments scattered throughout smear
Cell fragments, not cells!
Next most numerous

8. Platelets
Draw some platelets on your chart on page 2 where it says drawings and labels.
You DO NOT have to label anything for these.
They are the little purple dots!!!
“t” stands for thrombocyte
Number of cells in field (count) = 50

9. Human Blood Parts Plasma
Functions in transporting nutrients and hormones.
Separates this way due to density.
Yellowish in color
On your lab, sketch the test tube showing the separation of blood
Label the parts of the blood as shown in the diagram

10. Observing a healthy human blood smear
TASK #2
Observing a healthy human blood smear

11. Human Blood Smear Magnification 800x Identify: Red Blood cell
Label cell membrane
Label cytoplasm
WBC
Label nucleus
Platelets
White blood cell
Magnification 800x

12. Observing common blood diseases and disorders
TASK #3
Observing common blood diseases and disorders

13. Leukemia Smear Magnification 800x Identify: Red Blood cell
Label cell membrane
Label cytoplasm
WBC
NOTICE THAT THE NUCLEUS IS MUCH BIGGER!
Label nucleus
Platelets
Diseased white blood cell
Magnification 800x

14. SICKLE CELL ANEMIA Magnification 800x Identify: Red Blood cell
Label cell membrane
Label cytoplasm
Sickle cell
WBC
Label cell mem
Label nucleus
Platelets
Magnification 800x

15. Mononucleosis Smear Magnification 800x Identify: Red Blood cell
Label cell membrane
Label cytoplasm
WBC
NOTICE THE WATERY APPEARANCE OF THE WBC
Label nucleus
Platelets
Magnification 800x

16. Observing the blood of other vertebrates
TASK #4
Observing the blood of other vertebrates

17. Frog Blood Identify: Red Blood cell Label cell membrane
Label cytoplasm
Label nucleus
WBC
Label cell mem
Platelets
Platelet

18. Bird blood Identify: Red Blood cell Label cell membrane
Label cytoplasm
Label nucleus
WBC
Label cell mem
Platelets
Just draw some dots!
Red blood cell
White blood cell