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By: Tyler Nakamura Mr. Komo Anatomy/Physiology Makua Lani Christian School 5.1.2012

Function of the immune system

Defense of the human body

Function of the lymphatic system

Transportation and aid in body defense

Lymph

Blood plasma that is filtered out of capillaries into lymphatic vessels

Lymph nodes

Filters and cleanses lymph

Lymph ducts

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

Allergy

An overreaction of the immune system to a harmless substance

Thymus

In the mediastinum.
Creates T-cels which are needed in immune system

Tonsils

Protect against bacteria entering mouth and nose
Pharyngeal
Palatine
Lingual

Spleen

In upper abdomen. Removes bacteria and worn out RBC's

Non-specific immunity

General protection against foreign invaders
Skin, tears and mucus.

Inflammatory response

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 immunity

Specific protection against certain bacteria and toxins

Inborn/inherited immunity

Already immune to certain diseases

Acquired immunity

Being exposed to a disease
Natural- non deliberate
Artificial- deliberate

Antibodies

Protein molecule that binds to foreign molecules to fight off the infection. The foreign molecules are known as antigens.

Humoral immunity

Change the proteins of foreign molecules so they don't harm the body

Complements

Proteins that invade foreign molecules when exposed by antibodies

Phagocytes (3 Types)

Neutrophils
Monocytes
Macrophages
Destroys infections by phagocytosis

Lymphocytes (2 Types)

T cells
B cells

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)

Secretes antibodies

Memory cells

remembers the antibodies produced to fight off a specific infection

Development of a T cell

Stem 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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