lymphatic System Flashcards
What is the body’s first line of defense against the invasion of disease-causing microorganisms?
Cutaneous and mucous membranes
Where do B cells develop immunocompetence?
Bone marrow
What are the major lymphoid organs?
Spleen, thymus gland, peyer’s patches, tonsils, appendix, bone marrow, lymph nodes
What is lymph?
The fluid that is forced out of capillary beds by hydrostatic and osmotic pressure and into the tissue spaces
What is the function of the thymus?
The lymph organ that programs T cells, functions at peak levels during youth
What are the classes of antibodies?
IgL, IgM, IgA, IgD, IgE
What are the common indicators on the inflammatory response?
Redness, heat, swelling, pain
What specific type of acquired immunity is obtained by a fetus acquiring maternal antibodies that cross the placenta?
Naturally acquired passive immunity
What is used to heal a snake bite?
Antivenin
What are the methods by which antibodies inactivate pathogens?
Agglutination, precipitation, neutralization, complement filtration
What is diapedesis?
The process by which neutrophils are squeezed through the capillary walls turning the inflammatory process
What types of substances are typically perceived as pathogens?
Virus particles, fungi spores, bacteria, pollen grains
