The Lymphatic System Flashcards
What does the mesoderm produce in the lymph system
Lymphatic vessels, lymph nodes, the spleen, and myeloid tissue
What does the endoderm produce in lymphatic development
Thymus and parts fo the tonsils
Lymphoid tissue continues developing until when
Puberty
What are the lymphatic functions of the spleen
Make lymph (1/2 of all lymph)
Clears bacteria
Large chylomircrons travel where
In the lymph system of the GALT
How much fluid moves from the capillaries to interstitial space each day
30 L
What does the pump effect of the diaphragm allow for
The diaphragmatic cura on the cysterna chyli to move and allow for the movement of lymph fluid
How doe lymph channels begin
As bling endothelial tubes composed of a single layer of squamous epithelium
What does the outer cortex of the lymph node contain
B cells that sit within germinal centers
What does the deep cortex of the lymph node contain
Sinuses with T-cells
What does the medullary sinus contain in the lymph node
B-cells and plasma cells
What does the subscapular space contain in the lymph node
Afferent vessels which deliver lymph in the a meshwork of reticular fibers, macrophages, and dendritic cells
Where are superficial lymph nodes located
Within the subQ tissue (cervical, axillary, inguinal)
Where are the deep LN’s located
Beneath the fascia within muscles and organs
What does the thoracic duct originate as
Cistern chyli
