Lymphatic System Flashcards
Lymphatic capillaries are
blind /terminal ended, & takes up extra fluid from extracellular space
Lymphatic system is involved in
fluid recovery, immunity, lipid resorption
components of lymphatic system are
lymph , l. vessels, l. tissues, l, organs
lymph is___ , and similar to plasma, but _____
clear/ colorless, has less protein
system of cells throughout body that defends from disease is the
immune system
lymphatic systems takes up foreign cells/bacteria , and ___
transports to lymph nodes
has large gaps to allow entrance, & has big spaced bwtween cells
lymphatic capillaries
All 6 lymphatic trunks ultimately form
two collective ducts (Right Lymphatic & Thoracic Duct)
Two collective ducts include
right lymphatic duct & thoracic duct
Right lymphatic duct receives lymph from ____ and empties into
right upper limbs , right side of head/ neck … right subclavian vein
Thoracic duct collects from _____ & empties into __________
below diaphragm, L upper limbs, L side of head/ neck … L subclavian vein
Metastatic cancer can spread via
lymphatic vessels and into the lymph nodes
fluid originates in heart, and
fluid is returned the heart
lymph flows @ lower pressure, resulting in
overall slow flow of lymph
Lymph is moved along
by rhythmic contractions of lymphatic vessels
lymphatic tissues are aka
lmyphoids
Diffused lymphatic tissues
are NOT clustered (scattered groups of lymphocytes) and prevalent where body passages open to exterior
Lymphatic nodules are aka
follicles
Dense clusters of lymphocytes/ macrophages found in lymph nodes & respond to pathogens
lymphatic nodules
Primary lymphatic organs are where
T&B lymphocytes become immunocompotent & can recognize & respond to antigens
Primary lymphatic organ examples include
Red BM & thymus
Secondary lymphatic organs include
Lymph nodes, tonsils and spleen
Lymphocytes already immunocompetent in
secondary lymphatic organs
site of hemopoisesis, and involved in immunity
Red BM
multi organ, under sternum that disappears as your age
Thymus
Only lymphatic organ w/ lymphatic vessels is
lymph nodes
Most numerous lymphatic organ, w/ about 450 present in body, cleanses lymph & where lymphocytes ACTIVATE
lymph nodes
dense masses of lymphocytes found in small intestine
peyer patches
Lymphatic organs are considered “organs” because
there is connective tissue that separates the lymphatic tissue
T cells become immunocompetent in the
Thymus
Tonsils are also known as ______ and have the functions of
adenoids , lymphatic tissues
Types of tonsils taken out during removal
palatine and pharyngeal
Largest lymphatic organ, composed of red & white pulp
spleen
Red pulp of spleen is
filled with RBCs and had extra erythrocytes
White pulp of spleen is
the lymphatic part; monitors blood for foreign antigens
Monitors lymph for foreign antigens
lymph nodes
any/all lymph node diseases
lymphedenopathy
