Chapter 12- The Lymphatic System Flashcards
Define the Function: Lymphatic System as part of the body’s defence
It protects against disease by destroying “foreign” cells and by inactivating toxins and other foreign chemicals with antibodies
Name the organs that make up the Lymphatic System
Lymphatic vessels
Lymph nodes
Thoracic Duct
Define the Function: Lymphatic Vessels
picks up lymph and returns it to the blood
Define the Function: Lymph Nodes
Removes foreign material such as bacteria and tumour cells from the lymphatic stream
Give an example: Regional lymph nodes
cervical nodes
axillary nodes
Inguinal nodes
Give an example: Other lymphoid organs
Spleen
Thymus
Tonsils
Name the body’s 2 defence systems
- Innate Defence System
2. Adaptive Defence System
Define the Function: Innate Defence System
Responds immediately to protect the body from all foreign substances
Define the Function: Adaptive Defence System
Mounts the attack against particular foreign substances
Which defence system is inherited?
Innate defence system
What is the bodies 1st and 2nd line of defence?
1st- Surface Barriers: skin and mucous membranes
2nd- Internal Defences: Cells and chemicals
Which defence system is the immune system response
Adaptive defence system
Define: Antigen
Is any substance capable of mobilising our immune system and provoking an immune response
What are the cells of the Adaptive Defence System
Lymphocytes
Antigen-presenting cells (APCs)
Give 2 examples: Active Immunity
- Naturally acquired
2. Artificially acquired
