The Lymphatic System and Spread of Dental Infection Final Exam Flashcards
2 Components to the Circulatory System they are related
- Cardiovascular system
- Lymphatic system
Anatomically blood vessels and lymphatics lie in close ___
proximity
Lymphatic vessels ___ and ___ than capillaries
Larger
Thicker
Constant ____ of fluid between the 2 systems
recirculation
Lymphatic also plays a key role in the ___ _____
immune system
The lymphatic system has similar ___ as veins
valves
Does the tooth have the lymphatic system or cardiovascular system or both
BOTH
clear watery fluid that drains from the surrounding tissues
and into the lymphatic system
Lymph
WBC, actively remove toxins
Lymphocytes
channels that drain tissue and empty into larger
DUCTS and carries back to the venous system
Lymphatic vessels
small bean shaped nodules located along the path of
the lymphatic system, filter toxins from the vascular system
Lymph nodes
mass of lymph tissue in the oral cavity and pharynx
area
Tonsillar tissue
mass of lymph tissue in the oral cavity and pharynx
area
-Palatine-between faucial pillars -Lingual-base of tongue
-Pharygeal-posterior wall of nasopharynx (adenoids)
Tonsillar tissue
Lymphatic Drainage
-Excess blood plasma is forced out of the
vascular capillaries and into the tissue
- It then enters the lymphatic vessels and is
called lymph
- Lymphatic vessels unite to travel through a
series of nodes
- Then into main collecting ducts that are not
bilateral on right and left
Clinical Significance of Lymphatic Tissue:
What are 2 Roles in maintaining health?
- Stores lymphocytes (WBC) that remove toxic products
2. Filtration system to prevent toxins or pathogens from entering the blood
a change in the size and consistency of lymph nodes as
a result of a disease process ex. Cancer or infection
Lymphadenopathy
l Firm to hard l Swollen l Possibly tender (from the pressure on area nerve) l Sometimes fixed
These are characteristics of a healthy or unhealthy palpation of lymph nodes
unhealthy