Lab #16 Blood
What are the parts of the blood?
What are some diseases that
affect human blood?
TASK #1
OBSERVING RED BLOOD CELLS, WHITE
BLOOD CELLS AND PLATELETS
Human Blood Parts
Red Blood Cells (Erythrocytes)
– Carry oxygen
– Most numerous in blood smear
Cell membrane
Cytoplasm
1. Draw one or
two RBC’s on
your chart on
page 2
2. Label
• Cell
membrane
• Cytoplasm
3. Count: 100
Human Blood Parts
White Blood Cells (Leukocytes)
– Function in the immune system
– Much larger than RBC’s
Nuclear material
Cell membrane
Cytoplasm
1. Draw one or
two WBC’s
on your chart
on page 2
2. Label
• Cell
membrane
• Cytoplasm
• Nucleus
• Count: 15
Human Blood Parts
Platelets
– Function in clotting
– “Dot-like” fragments scattered throughout
smear
1. Draw some
– Cell fragments, not cells!
platelets on
your chart on
page 2
1. “t” stands for
thrombocyte
2. Count: 50
Human Blood Parts
Plasma
– Functions in transporting nutrients and
hormones
1. On your lab,
– Yellowish in color
sketch the
test tube
showing the
separation of
blood
2. Label the
parts of the
blood as
shown in the
diagram
TASK #2
Observing a healthy human
blood smear
Human Blood Smear
White blood cell
Magnification 800x
Identify:
1. Red Blood cell
• Label cell
membrane
• Label
cytoplasm
2. WBC
• Label cell mem
• Label
cytoplasm
• Label nucleus
3. Platelets
TASK #3
Observing common blood
diseases and disorders
Leukemia Smear
Diseased white blood cell
Identify:
1. Red Blood cell
• Label cell
membrane
• Label cytoplasm
2. WBC
• NOTICE THAT
THE NUCLEUS
IS MUCH
BIGGER!
• Label cell mem
• Label cytoplasm
• Label nucleus
3. Platelets
SICKLE CELL ANEMIA
Identify:
1. Red Blood cell
• Label cell
membrane
• Label cytoplasm
2. Sickle cell
3. WBC
• Label cell mem
• Label cytoplasm
• Label nucleus
4. Platelets
Mononucleosis Smear
Identify:
1. Red Blood cell
• Label cell
membrane
• Label cytoplasm
2. WBC
• NOTICE THE
WATERY
APPEARANCE
OF THE WBC
• Label cell mem
• Label cytoplasm
• Label nucleus
3. Platelets
TASK #4
Observing the blood of other
vertebrates
Frog Blood
Identify:
1. Red Blood cell
• Label cell
membrane
• Label cytoplasm
• Label nucleus
2. WBC
• Label cell mem
• Label cytoplasm
• Label nucleus
3. Platelets
Bird blood
Identify:
1. Red Blood cell
• Label cell
membrane
• Label cytoplasm
• Label nucleus
2. WBC
• Label cell mem
• Label cytoplasm
• Label nucleus
3. Platelets
• Just draw some
dots!