Ch. 24: The Lymphatic System And Immunity Flashcards
Pathogens
Disease producing microbes
Susceptibility
Lack of resistance
Inate/ non-specific immunity
Non-adaptive
In born
Adaptive (specific) immunity
Specific recognition of the microbe
Excess intereticial fluid
Enters the lymph vessels
Lymphatic capillaries are also called
Lacteals
Lacteals
Absorb lipids in the intestine
Lymphatic organs aid in
The production and maturation of lymphocytes
What monitors foreign substances
Lymphocytes and macrophages
Tissues lacking lymphatic capillaries
- avascular tissues
- cartilage, epidermis, eye cornea, CNS, spleen, red bone marrow
Lacteal
Carry the lipids
Chyle
Lymph in the lacteals
Where do lymph vessels unite
Lymph trunks
Jugular trunks
The head and neck
Subclavian trunks
The upper limbs, breasts and superficial thoracic wall
Bronchomediastinal trunks
Deep thoracic structures
Intestinal trunks
Most abdominal structures
Lumbar trunks
Lower limbs, abdominopelvic wall and pelvic organs
Right lymphatic trunks
- deep to the clavicle and returns ly,ph at the junction of the right subclavian and internal jugular veins
- returns blood from the right side of the head and ek, the right upper limb and right side of the thorax
Thoracic duct
Largest lymph vessel
- begins in a rounded sac like structure called the cisterns chyli
- collects lymph from most of the body (excluding the right lymphatic duct drainage)
- returns lymph into the junction between the left subclavian and internal jugular veins
Right side trunks
Right Jugular, right Subclavian, and right bronchomediastinal - into interior jugular and subclavian veins)
Left side trunks
All five trunks
Macrophages
- monocytes that have left blood
- engulfs foreign substances; may present antigens to other lymphoid cells
Special epithelial cells ( nurse cells )
- secretory cells in the thymus
