BI 122 - THE LYMPHATIC SYSTEM
EXAM 2025 QUESTIONS AND ANSWERS
What are the functions of the lymphatic system ? - ANS 1. Immunity
- Transport of white blood cells
- Transport of pathogens to lymph nodes
- Production of antibodies
2. Interstitial Fluid Return
3. Transport fat from small intestine to veins
What is the hierarchy of the lymphatic system? - ANS 1. Capillaries
2. Lymph vessels
3. Lymph nodes
4. Lymph vessels
5. Lymph trunk
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,6. Lymph duct
7. Subclavian veins
What is the function and characteristics of the capillaries ? - ANS 1. Collect interstitial fluid
(lymph)
2. They have similar anatomy as blood capillaries
3. Closed ends
4. Same distance as blood capillaries
What are some characteristics of lymphatic vessels ? - ANS 1. Same tunic anatomy as veins
2. Contains semi-lunar valves
3. Periodic lymph nodes
What is the function of lymphatic trunks? - ANS Collect lymph from Lymph vessels
What is the function and characteristic of Lymph ducts ? - ANS 1. Collect lymph from lymph
trunks
2. both ducts (thoracic and right lymphatic) dump into subclavian veins
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, Where can you find lymphatic capillaries ? - ANS Dermis. Any break in dermis allows entry
into lymphatic system e.g. bee stings, spider bites
What is the function of lymph nodes ? - ANS Destroy pathogens
What are some characteristics of lymph nodes ? - ANS 1. Serves as house for increasing
number of dividing and mature lymphocytes and macrophages
2. Located along lymphatic pathways
Where else are lymphocytes produced? - ANS Red marrow
What nodes are affected with a throat or respiratory infection ? - ANS Cervical nodes
become enlarged producing swollen glands
What are the first nodes in line to drain a tumor ? - ANS Sentinesl lymph nodes should be the
first to receive cells from a metastasizing cancer
3 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
EXAM 2025 QUESTIONS AND ANSWERS
What are the functions of the lymphatic system ? - ANS 1. Immunity
- Transport of white blood cells
- Transport of pathogens to lymph nodes
- Production of antibodies
2. Interstitial Fluid Return
3. Transport fat from small intestine to veins
What is the hierarchy of the lymphatic system? - ANS 1. Capillaries
2. Lymph vessels
3. Lymph nodes
4. Lymph vessels
5. Lymph trunk
1 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
,6. Lymph duct
7. Subclavian veins
What is the function and characteristics of the capillaries ? - ANS 1. Collect interstitial fluid
(lymph)
2. They have similar anatomy as blood capillaries
3. Closed ends
4. Same distance as blood capillaries
What are some characteristics of lymphatic vessels ? - ANS 1. Same tunic anatomy as veins
2. Contains semi-lunar valves
3. Periodic lymph nodes
What is the function of lymphatic trunks? - ANS Collect lymph from Lymph vessels
What is the function and characteristic of Lymph ducts ? - ANS 1. Collect lymph from lymph
trunks
2. both ducts (thoracic and right lymphatic) dump into subclavian veins
2 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
, Where can you find lymphatic capillaries ? - ANS Dermis. Any break in dermis allows entry
into lymphatic system e.g. bee stings, spider bites
What is the function of lymph nodes ? - ANS Destroy pathogens
What are some characteristics of lymph nodes ? - ANS 1. Serves as house for increasing
number of dividing and mature lymphocytes and macrophages
2. Located along lymphatic pathways
Where else are lymphocytes produced? - ANS Red marrow
What nodes are affected with a throat or respiratory infection ? - ANS Cervical nodes
become enlarged producing swollen glands
What are the first nodes in line to drain a tumor ? - ANS Sentinesl lymph nodes should be the
first to receive cells from a metastasizing cancer
3 Copyright ©2025 FYNDLAY ALL RIGHTS RESERVED.
