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21 Cards in this Set
- Front
- Back
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What does anatomose mean? |
To branch out |
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What are some structural characteristics of lymphatic vessels |
Same tunics as veins, thinner walls, more internal valves, branch out more frequently |
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What are lymph nodes? |
Solid, spherical bodies tightly packed with reticular elements and cells |
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What three areas are lymph node clusters found? |
Axilarry, Inguinal, Cervical |
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What is the function of the speen? |
Immune surveillance, cleanses blood, site of fetal erythrocyte production |
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What is an antigen? |
Anything the body perceives as foreign. |
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Where are the palatine tonsils? |
Either side of the posterior end of the oral cavity |
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Where are the lingual tonsils? |
Base of tongue |
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Where is the pharyngeal tonsils? |
Posterior wall of the nasopharynx |
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Where are the tubal tonsils |
Surround the openings of the auditory tubes into the pharynx |
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What does APC mean in immunity? |
Antigen presented cell |
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What is a key difference between T cells and B cells |
T Cells and made in bone marrow and mature in Thymus, B cells and made and matured in the bone marrow |
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What are some differences between primary and secondary immunity? |
Secondary response is faster acting |
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What is the first line of defense? |
Skin & mucosae |
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What is the 2nd line of defense? |
Antimicrobial proteins & phagocytes |
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What is the 3rd line of defense? |
Attack on particular foreign substances |
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What makes skin a good immune barrier? |
Acidity if 3-5 which inhibits bacterial growth Sebum is toxic to bacteria |
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Why is fever beneficial? |
Liver and spleen isolate and take away iron and zinc Increase metabolic rate which speeds up tissue repair |
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What is neutralization? |
Masking dangerous parts of bacteria and viruses |
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What is agglutination? |
Cell bound antigens |
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What is cell lysis? |
Cell exploding |
