Lymphatic System(MSØV)
1. Define the lymphatic system and mention its functions
The lymphatic system is a network of organs, tissues, and vessels that help defend the body against infection and disease. The primary functions of the lymphatic system include:
- Defending the body against infection and disease
- Transporting lymph fluid, which carries white blood cells, platelets, and waste products, throughout the body
- Absorbing fats and fat-soluble vitamins from the digestive tract
- Regulating the balance of fluids in the body
- Maintaining the pH balance of the body
2. Enumerate the components of lymphatic systems
The lymphatic system consists of:
- Lymph nodes
- Lymphatic vessels
- Lymphatic sacs (thymus, spleen)
- Lymphoid organs (tonsils, adenoids, Peyer's patches)
- Lymphoid tissues (MALT, BALT)
- Lymphatic organs (lymph nodes, spleen, thymus)
3. Define mucosa associated lymphatic tissue and bronchus associated lymphatic tissue
Mucosa Associated Lymphoid Tissue (MALT)
MALT is a type of lymphoid tissue that is found in the mucous membranes of the respiratory, gastrointestinal, and genitourinary tracts. It is composed of lymphoid cells and follicles, which help to defend the body against infections and disease.
Bronchus Associated Lymphoid Tissue (BALT)
BALT is a type of lymphoid tissue that is found in the lungs and airways. It is composed of lymphoid cells and follicles, which help to defend the body against respiratory infections and disease.
Lymphatic vessels ↓ Lymph nodes ↓ Lymphatic organs (spleen, thymus) ↓ Lymphoid tissues (MALT, BALT)