IMMUNE SYSTEM
1ST LINE OF DEFENCE
- physical & chemical barriers
ex: skin, saliva, mucus,
2nd LINE OF DEFENCE
- lymphatic system
» Consists of organs, ducts and nodes
» Transports LYMPH
» Contains LEUKOCYTES
p.466
Bone Marrow CELLS
p. 464
Make a table summarizing the key cells in the
immune system & what they do…
Cell Function Description/sketch
2nd Line of Defence (p. 463)
2nd Line of Defence (p. 463)
INFLAMMATORY RESPONSE
Localized, non-specific response;
redness, swelling, heat, pain
THE IMMUNE RESPONSE
KILLER PROTEINS
(p. 467)
Antigen-Antibody Markers
Every antibody has
a binding site that
is specifically
shaped to bind a
particular antibody
Recognizing
Invaders
T-CELLS
Helper T-Cells Killer T-Cells
T-Cells w/ receptors Puncture intruder’s cell
Identifies the antigen membrane & infected
Signals B-Cells & Killer body cells
T-Cells Kill mutated cells
Suppressor T-Cells
Shuts down immune response
B-CELLS
• Clone as a result of LYMPHOKYNE
• Produce specific ANTIBODY based on
blueprint from Helper T-Cells
• Memory B-Cells hold an imprint of the
antigen
IMMUNITY