Function of the immune system
Defense of the human body
Function of the lymphatic system
Transportation and aid in body defense
Blood plasma that is filtered out of capillaries into lymphatic vessels
Filters and cleanses lymph
Returns lymph to veins
The entire process of lymph travel
Blood is pushed out of capillaries into lymphatic vessels
Travel to ducts
On the way to lymph ducts, the lymph is cleansed of bacteria and cancerous cells in lymph nodes
An overreaction of the immune system to a harmless substance
In the mediastinum.
Creates T-cels which are needed in immune system
Protect against bacteria entering mouth and nose
In upper abdomen. Removes bacteria and worn out RBC's
General protection against foreign invaders
Skin, tears and mucus.
Non specific response that occur to fight of a infection. Once the bacteria is released.
Cause of mediators (in immune system)
Increased blood flow and WBC increase
Specific protection against certain bacteria and toxins
Already immune to certain diseases
Being exposed to a disease
Natural- non deliberate
Protein molecule that binds to foreign molecules to fight off the infection. The foreign molecules are known as antigens.
Change the proteins of foreign molecules so they don't harm the body
Proteins that invade foreign molecules when exposed by antibodies
Phagocytes (3 Types)
Destroys infections by phagocytosis
Lymphocytes (2 Types)
The development of a B cell
Starts as a stem cell
Matures into either plasma or memory cell (both are B cells)
Plasma cell (immune system)
remembers the antibodies produced to fight off a specific infection
Development of a T cell
Immature T cell travels to lymph node
T cell binds with antigen
T cells fight infections directly or indirectly (produces attracting factors for macrophage or helps accelerate phagocytosis)
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