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25 Cards in this Set
- Front
- Back
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What are the two semi- independent parts of the lymphatic system? |
Lymphatic vessels Lymphoid Tissue or organs |
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What is lymph? |
Excess tissue fluid carried by lymphatic vessels |
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What does the outer part of the cortex contain? |
Follicles collections of lymphocytes |
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What does the inner part of the medulla contain? |
Macrophages |
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What harmful materials that enters lymph vessels? |
Bacteria Viruses Cancer cells Cells debris |
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What do lymph nodes do? |
They filter lymph before it is returned to the blood |
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What is the function of macrophages |
They engulf and destroy foreign substances |
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What is the function of lymphocytes |
Provide immune response to antigens |
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What are most lymph nodes shaped like and how long |
Kidney shaped Less then 1 inch long |
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What are tonsils |
Small masses of lymphoid tissue around the pharynx |
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What is to tonsillitis caused by |
Congestion with bacteria |
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Where are Peyer’s patches found |
In walls of small intestine Help destroy bacteria in this area |
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What are B cells |
B lymphocytes |
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What are T cells |
T lymphocytes |
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What do B cells connect to |
Bone marrow |
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What do T cells connect to |
The thymus |
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What are some examples of body surface coverings |
Intact skin Mucous membrane Specialized human cells Chemicals produced by body |
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What are some functions of stomach mucosa |
Secretes hydrochloric acid Has protein- digesting enzymes |
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What do saliva and lacrimal fluid contain |
Lysozymes- a enzyme that destroys bacteria |
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What are your second line of defense? |
Phagocytes Natural killer cells Inflammatory response Antimicrobial proteins Fever |
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What are the four most common indicators of acute inflammation |
Redness Heat Swelling Pain |
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When is the inflammatory response triggered |
When the body tissues are injured |
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What is the function of antimicrobial proteins |
Attack microorganisms Hinder reproduction of microorganisms |
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What do macrophages do |
Secrete cytokinesis |
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What are examples of antigens |
Foreign protein Large carbohydrates Pollan |
