1. Catalyst
What are leukocytes? What do they do for your body?

2. The week… Today - Blood Types Thursday - Project Brainstorm/research
check-ins
Friday - Blood Splatter

3. Figure 42.17 The composition of mammalian blood
Plasma 55%
Constituent
Major functions
Cellular elements 45%
Cell type
Number
per µL (mm3) of blood
Functions
Water
Solvent for
carrying other
substances
Erythrocytes
(red blood cells)
5–6 million
Transport oxygen
and help transport
carbon dioxide
Ions (blood electrolytes)
Sodium
Potassium
Calcium
Magnesium
Chloride
Bicarbonate
Osmotic balance,
pH buffering, and
regulation of
membrane
permeability
Separated
blood
elements
Leukocytes
(white blood cells)
5,000–10,000
Defense and
immunity
Plasma proteins
Albumin
Osmotic balance
pH buffering
Lymphocyte
Basophil
Fibrinogen
Figure The composition of mammalian blood
For the Discovery Video Blood, go to Animation and Video Files.
For the Cell Biology Video Leukocyte Adhesion and Rolling, go to Animation and Video Files.
Clotting
Immunoglobulins
(antibodies)
Defense
Eosinophil
Neutrophil
Monocyte
Substances transported by blood
Nutrients (such as glucose, fatty acids, vitamins)
Waste products of metabolism
Respiratory gases (O2 and CO2)
Hormones
Platelets
250,000–
400,000
Blood clotting

4. Fig
Collagen fibers
Platelet
plug
Platelet releases chemicals
that make nearby platelets sticky
Figure Blood clotting

5. Platelet releases chemicals that make nearby platelets sticky
Fig
Collagen fibers
Platelet
plug
Platelet releases chemicals
that make nearby platelets sticky
Clotting factors from:
Platelets
Damaged cells
Plasma (factors include calcium, vitamin K)
Figure Blood clotting

6. Platelet releases chemicals that make nearby platelets sticky
Fig
Collagen fibers
Platelet
plug
Platelet releases chemicals
that make nearby platelets sticky
Clotting factors from:
Platelets
Damaged cells
Plasma (factors include calcium, vitamin K)
Figure Blood clotting
Prothrombin
Thrombin

7. Platelet releases chemicals that make nearby platelets sticky
Fig
Red blood cell
Collagen fibers
Platelet
plug
Fibrin clot
Platelet releases chemicals
that make nearby platelets sticky
Clotting factors from:
Platelets
Damaged cells
Plasma (factors include calcium, vitamin K)
Figure Blood clotting
Prothrombin
Thrombin
Fibrinogen
Fibrin
5 µm

8. Stem cells (in bone marrow) Lymphoid stem cells Myeloid stem cells
Fig
Stem cells
(in bone marrow)
Lymphoid
stem cells
Myeloid
stem cells
Lymphocytes
B cells
T cells
Figure Differentiation of blood cells
Erythrocytes
Neutrophils
Platelets
Eosinophils
Monocytes
Basophils

9. Blood Types

10. My blood type is A… what does that actually mean?

11. Determining Blood Types

12. Rh Factor… (also called D antigen)

13. For example…

14. Donate?

15. How common is your type?

16. Blood Practice Questions.
Use your notes to respond throughly.