A&P II - Lymphatic System Exam (2026-
2027 Newest Version) with Proven
Questions and Reliable Answers for
Success / Get it 100% Correct Answers
What type of immunity is present at birth and has no memory?
Innate/nonspecific
What immunity recognizes specific antigens and has memory (also
involves B and T lymphocytes?)
Adaptive/Specific
What makes up the lymphatic system?
Lymph, lymphatic vessels, red bone marrow, nodes, nodules,
thymus, spleen
What makes up lymphatic tissue?
Specialized reticular connective tissue with many B and T
lymphocytes
What is interstitial fluid that has entered lymphatic vessels called?
Lymph
What are the three main functions of the lymphatic system?
Drain excess interstitial fluid, transport dietary lipids and fat
soluble vitamins, carry out immune functions (B cell and T cell)
Does lymph circulate?
No, it is a one way journey to venous blood
What moves lymph around the body?
Milking by skeletal muscles and respiratory pump
What is the pathway of lymph?
,Lymphatic capillaries>lymphatic vessels>lymphatic
trunks>Lymphatic ducts>Subclavian vein
What are blind tubules in most tissues?
Lymphatic capillaries
Where are there no lymphatic capillaries?
Avascular tissues, CNS, parts of spleen and red bone marrow
What lymphatic duct drains most of the body?
Thoracic duct
What are the lymphatic trunks of the body?
Lumbar, inestinal, broncomediastinal, subclavian, and jugular
What duct drains the upper right portion of the body?
Right lymphatic duct
What are specialized reticular connective tissue (loose CT)?
Lymphatic tissues
What is the term for functional fibers?
Parenchyma
What is the supporting framework called?
the Stroma
What are the extentions of the capsule into the body of an organ
called?
Trebeculae
What is a characteristic of a lymphatic organ?
CT capsule
Why are lymphatic nodules not an organ?
They lack a CT capsule
What are two of the subdivisions of the lymphatic nodule?
Medulla and cortex
What is the depression in an organ where vessels enter/leave
called?
Hilus or Hilum
What are the two divisions of lymphatic function?
, Primary and Secondary
What is it called when something is capable of an immune reaction
and able to recognize self antigens?
Immunocompetent
What are the primary lymphatic organs and tissues?
Red bone marrow and thymus
What are some secondary lymphatic organs and tissues?
Lymph nodes, spleen and lymphatic nodules
What type of lymphatic organ and/or tissue is where stem cells
divide and become immunocompetent?
Primary
What type of lymphatic organ and/or tissue is where most immune
reactions occur?
Secondary
Where does lymphatic tissue originate from?
Mesoderm
When is a human's thymus the largest?
In infancy
What is the thymus' role in the immune system?
It is responsible for supplying secondary lymphatic tissues with T
cells
Where is the thymus' origins?
An outgrowth of the 3rd pharyngeal pouch/gill pouch
What cells make up the cortex of the thymus?
T cells, epithelial cells, dendric cells, macrophages
What do epithelial cells in the thymus do?
Make thymic hormones which cause T cells to mature
How many of the T cells undergo apoptosis and get phagocytized
by macrophages?
98%
Where do the remaining surviving cells from the thymus go after
the cortex?
2027 Newest Version) with Proven
Questions and Reliable Answers for
Success / Get it 100% Correct Answers
What type of immunity is present at birth and has no memory?
Innate/nonspecific
What immunity recognizes specific antigens and has memory (also
involves B and T lymphocytes?)
Adaptive/Specific
What makes up the lymphatic system?
Lymph, lymphatic vessels, red bone marrow, nodes, nodules,
thymus, spleen
What makes up lymphatic tissue?
Specialized reticular connective tissue with many B and T
lymphocytes
What is interstitial fluid that has entered lymphatic vessels called?
Lymph
What are the three main functions of the lymphatic system?
Drain excess interstitial fluid, transport dietary lipids and fat
soluble vitamins, carry out immune functions (B cell and T cell)
Does lymph circulate?
No, it is a one way journey to venous blood
What moves lymph around the body?
Milking by skeletal muscles and respiratory pump
What is the pathway of lymph?
,Lymphatic capillaries>lymphatic vessels>lymphatic
trunks>Lymphatic ducts>Subclavian vein
What are blind tubules in most tissues?
Lymphatic capillaries
Where are there no lymphatic capillaries?
Avascular tissues, CNS, parts of spleen and red bone marrow
What lymphatic duct drains most of the body?
Thoracic duct
What are the lymphatic trunks of the body?
Lumbar, inestinal, broncomediastinal, subclavian, and jugular
What duct drains the upper right portion of the body?
Right lymphatic duct
What are specialized reticular connective tissue (loose CT)?
Lymphatic tissues
What is the term for functional fibers?
Parenchyma
What is the supporting framework called?
the Stroma
What are the extentions of the capsule into the body of an organ
called?
Trebeculae
What is a characteristic of a lymphatic organ?
CT capsule
Why are lymphatic nodules not an organ?
They lack a CT capsule
What are two of the subdivisions of the lymphatic nodule?
Medulla and cortex
What is the depression in an organ where vessels enter/leave
called?
Hilus or Hilum
What are the two divisions of lymphatic function?
, Primary and Secondary
What is it called when something is capable of an immune reaction
and able to recognize self antigens?
Immunocompetent
What are the primary lymphatic organs and tissues?
Red bone marrow and thymus
What are some secondary lymphatic organs and tissues?
Lymph nodes, spleen and lymphatic nodules
What type of lymphatic organ and/or tissue is where stem cells
divide and become immunocompetent?
Primary
What type of lymphatic organ and/or tissue is where most immune
reactions occur?
Secondary
Where does lymphatic tissue originate from?
Mesoderm
When is a human's thymus the largest?
In infancy
What is the thymus' role in the immune system?
It is responsible for supplying secondary lymphatic tissues with T
cells
Where is the thymus' origins?
An outgrowth of the 3rd pharyngeal pouch/gill pouch
What cells make up the cortex of the thymus?
T cells, epithelial cells, dendric cells, macrophages
What do epithelial cells in the thymus do?
Make thymic hormones which cause T cells to mature
How many of the T cells undergo apoptosis and get phagocytized
by macrophages?
98%
Where do the remaining surviving cells from the thymus go after
the cortex?
