Final- Lymphatic, Immune, Digestive, Urinary, and Reproductive Systems system Flashcards
(254 cards)
What are the 4 components of the lymphatic system?
1) lymphatic vessels
2) lymphoid tissues
3) lymphoid organs
4) immune system
What are the lymphoid vessels in order from smallest to largest?
test q
1) capillaries
2) collecting vessels
3) trunks (regional)
3A) jugular
3B) subclavian
3C) broncho-mediastinal
3D) lumbar (R/L)
3E) intestinal
4) ducts (right lymphatic and left thoracic duct)
Cisterna chyli (“bowl of juice”) is at the same level of L2, and receives lymph fluid from….
test q
Lumbar and intestinal trunks
What does the right lymphatic duct drain?
Exam question
Lymph from the right half of head, right side of thorax, and right arm into the right subclavian vein
What does the left thoracic duct drain?
Exam q
Lymph from everything besides R half of head, R side of thorax, and R arm into the L subclavian vein
What is another name for lymphoid tissues?
Lymphoid nodules (follicles)
_____________________ are encapsulated bundles of lymphatic cells with lamina propria (CT) layer of mucous membranes
Lymphoid tissues
Where are lymphoid tissues found (think tracts and tissues)?
GI, respiratory, reproductive, and urinary tracts, and peyer’s patches of the SI
What are the lymphatic organs?
-BM
-lymph nodes
-thymus
-spleen
-liver
-tonsils
Within BM, there is hematopoietic stem cells (blood cell precursors) that produce _____________ which mature into B and T lymphocytes
test q
Lymphoblasts
What serves as lymph filters and activates the immune system to remove and destroy pathogens/debris?
test q
Lymph nodes
What are the 4 parts of a lymph node structurally?
test q
1) cortex
2) medulla
3) afferent lymph vessels
4) efferent lymph vessels
What portion of the lymph node is the outer portion that contains WBCs, dendritic cells, and B cells predominantly?
test q
Cortex
What portion of the lymph node is the inner portion that contains large lymph capillaries?
test q
Medulla
What vessel within the lymph node takes lymph fluid to the lymph node?
test q
Afferent lymph vessels
What vessel within the lymph node takes lymph fluid away from lymph nodes?
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Efferent lymph vessels
Which lymphoid organ is located deep to the manubrium of the sternum?
test q
Thymus
Which lymphoid organ is bilobed and undergoes involution with age (gets smaller and replaces by fat)?
test q
Thymus
Which lymphoid organ has thymocytes (immature T lymphocytes) that migrate here from BM?
test q
Thymus
Which lymphoid organ secretes thymic hormones to stimulate maturation of thymocytes to mature T cells (T lymphocytes)?
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Thymus
Where is the site of lymphatic proliferation?
test q
Spleen
Which lymphoid organ has immune surveillance and response?
test q
Spleen
Which lymphoid organ extracts aged RBCs and platelets to break them down?
Test q
Spleen
What are the immune functions of the liver?
test q
Remove pathogens and toxins entering the body via the GI tract (taken to liver by the portal system)