1. KEY CONCEPT Blood is a complex tissue that transports materials.

2. Blood is composed mainly of cells, cell fragments, and plasma.
Whole blood is made up of different materials.
plasma
red blood cells
white blood cells
platelets
red blood cells,
white blood cells,
and platelets
plasma

3. Plasma is a key factor in maintaining homeostasis.
molecules diffuse into and out of plasma
contains proteins that stabilize blood volume
contains clotting factors
contains immune proteins

4. Platelets and different types of blood cells have different functions.
The bone marrow manufactures most of the blood components.
red blood cell
platelet
white blood cell

5. Red blood cells (erythrocytes) make up 40-45 % of all blood cells.
transport oxygen to cells and carry away carbon dioxide
have no nuclei and contain hemoglobin
Hemoglobin is a protein that contains iron to which the oxygen binds

6. White blood cells (leukocytes) fight pathogens and destroy foreign matter.
red blood cell
platelet
white blood cell

7. Platelets help form clots that control bleeding.
fibrin
red blood cell
white blood cell

8. Protein markers define blood types and Rh factors.
ABO blood group the most common
Rh factor can be negative or positive
blood types must be compatible for transfusions
Agglutination occurs when blood cells clump together
This would occur if someone with Type A blood is given a transfusion from someone with Type B blood.
The b antibodies in the Type A blood will attack the B antigens in the Type B blood.

9. Protein on RBC (antigen) Antibodies in blood plasma Can Donate to
Blood Type
Genotype
Protein on RBC (antigen)
Antibodies in blood plasma
Can Donate to
Can Receive from A
IAIA or IAi B
IBIB or IBi AB
IAIB O ii
Rh Factor
Rh+
Rh+Rh+ or
Rh+Rh-
Rh-
Rh-Rh-

10. The lymphatic system collects fluid that leaks out of the capillaries.
Lymph is collected from tissues and returned to the circulatory system.
heart
lymph nodes
lymph vessels
The lymphatic system collects fluid that leaks out of the capillaries.
Lymph vessels have valves to prevent backflow.
Lymph nodes filter the lymph and destroy foreign matter.
Lymph vessels return cleaned fluid to the circulatory system.
If lymph vessels or nodes are damaged, lymph collects in an area.

11. The lymphatic system is a major part of the immune system.
tonsils
thymus
spleen
Structures in the lymphatic system help fight disease.
tonsils filter bacteria and viruses
thymus develops white blood cells
spleen filters lymph, contains immune cells
Lymphocytes help destroy pathogens, parasites, and foreign matter.