LymphaticSystem

lymphatic system

It is responsible for the fluid balance. stream. absorbs and transports fatty acids and fats from the digestive system

white blood cells and dentritic cells

what does the lymphatic system transport?

Lymph

Lymphatic Fluid that contains nutrients, oxygen, hormones, and fatty acids as well as toxins and cellular waste products that are transported to and from cellular tissue.

Lymph vessels

one-way valve vessels that transports lymph from peripheral tissues to the veins of the cardiovascular system

Lymph Nodes

lymphatic tissue, usually in clusters, help defend the body against foreign substances. sites of hemopoeisis

Spleen

mass of lymphatic tissue found above and behind the cardiac portion of the stomach. It contains white pulp and red pulp

White pulp

site of lymphocyctes

red pulp

filters the blood

Tonsils

lymphoepithelial tissues, protects the body against pathogens and other potential ly harmful microorganisms entering from the nose and the mouth.

Thymus

located in the thoracic cavity. serves as the site of T-lymphocycte maturation, development and control

Antibodies

special proteins that fight off and destroy disease-causing germs.

Antigen

foreign substance introduced into the body and causes immune response; molecules produced by the body.

Immunoglobulin g (lgG)

is in tissue fluid and plasma and defends against bacterial cells, viruses, and toxins and activates complement, a group of immune system enzymes.

Immunoglobulin M (IgM)

is found in plasma and activates complement and reacts with blood cells during transfusions.

Immunoglobulin D (IgD)

can be found on surface of B cells, especially those of infants. It activates B cells

Immunoglobulin E (IgE)

is found in exocrine gland secretions and promotes allergic reactions.

Innate Immunity

first defense agaisnt invaders.

Acquired Immunity

takes time to develop after first exposure to a new antigen. alled specific immunity because it tailors its attack to a specific antigen

Adaptive Immunity

develops after exposure to agents such as microbes, toxins, or other foreign substances. It involves a very specific response to pathogens

Humoral immunity

meditated by antibodies produced by B lymphocyctes

Cell-meditated immunity

meditated by T lymphocyctes

Active Immunity

evelops naturally when memory cells form clones in response to an infection

Immunization

also called vaccination. ization, a nonpathogenic form of a microbe or part of a microbe elicits an immune response to an immunological memory.

Passive Immunity

provides short term protection. can be conferred artificially by injecting antibodies into a non immune person

Natural (Active immunity)

Infection

Artificial (Active immunity)

Vaccination

Natural (Passive immunity)

maternal antibodies

Artificial (Passive immunity)

monoclonal antibodies