Exam II

Lymphatic system consists of:
- Lymph
- Lymph vessels (lymphatics)
- Lymph nodes
- Lymph organs
Lymph organs
- Spleen
- Thymus
- Tonsils
Non-specific defences (anatomical defences)
- Intact skin and mucous menbranes acting as physical barriers
- Phagocytic cells engulf all types of foreign microbes/foreign material
- Toxic secretions of the sweat and subaceous glands of skin
- Acid of the stomach destroys most swallowed microbes
- Reticuloendoethial cells-macrophages found in lymph cellls
T-Lymphocytes

Responsible for "cellular immunity"- t-cell directly attacks and destroys the antigen
6 types of T-cells formed by mitotic division of sensitized T-lymphocyte
- Helper t-cell
- Amplifier t-cell
- Suppressor t-cell
- Delayed hypersensitivity t-cell
- Killer (sytotoxic) t-cell
- Memory t-cell
- (all 6 types are sensitized for the one specific antigen that started the process)

Author

sarawoods116

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Card Set

Exam II

Description

Lymphatic system and immunity

Updated

2011-10-11T03:12:50Z

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