BIOL 2402 Exam 2 (Lymphatic System) UPDATED ACTUAL Questions
and CORRECT Answers
Question: Lymphatic system functions
Correct Answer: Transport and house lymphocytes and other immune cells Return excess fluid in body
tissues to blood to maintain blood volume
Question: Lymphatic system components
Correct Answer: Lymph vessels, lymphatic tissues and organs Lymph is the fluid transported within
lymph vessels
Question: Characteristics of lymph
Correct Answer: Some fluid leaves blood capillaries and is not reabsorbed by them Such fluid moves into
lymphatic capillaries where it is called lymph
Question: Components of lymph
Correct Answer: Water, dissolved solutes, and small amount of protein Sometimes cell debris, pathogens,
or cancer cells
Question: Lymphatic capillaries
Correct Answer: Interspersed around most blood capillaries Absent in avascular tissues, red marrow,
spleen, and CNS
Question: Lacteals
Correct Answer: lymphatic capillaries in GI tract Absorb lipid-soluble substances from GI tract
Question: Movement of lymph into lymphatic capillaries
Correct Answer: Hydrostatic pressure of interstitial fluid pushes it into capillary Lymph moves through
vessels of larger and larger size -Lymphatic capillaries, lymphatic vessels, lymphatic trunks, and lymphatic
ducts
Question: Metastasis
Correct Answer: Wandering cancerous cells establishing secondary tumors -Develop in other locations in
the body (metastasis) -E.g., breast cancer may metastasize to the lung Cancerous cells -Transported in the
lymph
Question: Lymphatic vessels are ____
Correct Answer: fed by lymphatic capillaries
Question: lymphatic system lacks a ______
Correct Answer: pump; moves lymph using: -Skeletal muscles and respiratory pumps (as seen in veins)
-Pulsatile movement of blood in nearby arteries -Rhythmic contraction of smooth muscle in larger lymph
vessel walls
Question: Lymphatic ducts
Correct Answer: are fed by lymphatic trunks -Largest lymphatic vessels -Bring lymph to venous blood
circulation -There are two: right lymphatic duct and thoracic duct
, Question: Right lymphatic duct
Correct Answer: is near right clavicle Drains upper right quadrant of body -Right side of head and neck,
right upper limb, and right side of thorax Delivers lymph to junction of right subclavian and right internal
jugular veins
Question: Thoracic duct
Correct Answer: is largest lymphatic vessel Runs from diaphragm to junction of left subclavian and left
jugular veins Saclike cisterna chyli at its base -Receives lipid-rich chyle from GI tract Drains lymph from
left side of head and neck, left upper limb, left side of thorax, abdomen, and both lower limbs
Question: Lymphedema
Correct Answer: Accumulation of interstitial fluid due to interference with lymphatic drainage Causes
swelling and pain in affected area Controlled with exercise, massage Extreme cases known as elephantiasis
-Caused by infection with parasitic worms
Question: How does fluid enter lymphatic capillaries?
Correct Answer: The lymph is moved through the body in its own vessels making a one-way journey from
the interstitial spaces to the subclavian veins at the base of the neck. Since the lymphatic system does not
have a heart to pump it, its upward movement depends on the motions of the muscle and joint pumps
Question: What is the order of flow through different lymphatic vessels?
Correct Answer: capillaries vessels trunks ducts
Question: Which lymphatic duct receives lymph from the right leg?
Correct Answer: thoracic duct
Question: What does the acronym MALT stand for?
Correct Answer: mucosa associated lymphatic tissue - associated with small intestine
Question: What is an example of a primary lymphatic structure?
Correct Answer: thymus red bone marrow
Question: what is an example of secondary mephitic structure?
Correct Answer: tonsils lymph nodes (cervical) lymph nodes (axillary) spleen MALT lymph nodes
(inguinal)
Question: Red bone marrow
Correct Answer: spongy bone -In flat bones of skull, ribs, and sternum, vertebrae, ossa coxae, heads of
humerus and femur Site of hemopoiesis -T-lymphocytes and B-lymphocytes
Question: Thymus
Correct Answer: involved in T-lymphocyte maturation Located in superior mediastinum Larger in
children than adults -Grows until puberty, then regresses; gradually replaced by adipose tissue Each lobule
has outer cortex and inner medulla regions
Question: Where does hemopoiesis occur?
Correct Answer: red bone marrow
Question: What is the function of the thymus?
and CORRECT Answers
Question: Lymphatic system functions
Correct Answer: Transport and house lymphocytes and other immune cells Return excess fluid in body
tissues to blood to maintain blood volume
Question: Lymphatic system components
Correct Answer: Lymph vessels, lymphatic tissues and organs Lymph is the fluid transported within
lymph vessels
Question: Characteristics of lymph
Correct Answer: Some fluid leaves blood capillaries and is not reabsorbed by them Such fluid moves into
lymphatic capillaries where it is called lymph
Question: Components of lymph
Correct Answer: Water, dissolved solutes, and small amount of protein Sometimes cell debris, pathogens,
or cancer cells
Question: Lymphatic capillaries
Correct Answer: Interspersed around most blood capillaries Absent in avascular tissues, red marrow,
spleen, and CNS
Question: Lacteals
Correct Answer: lymphatic capillaries in GI tract Absorb lipid-soluble substances from GI tract
Question: Movement of lymph into lymphatic capillaries
Correct Answer: Hydrostatic pressure of interstitial fluid pushes it into capillary Lymph moves through
vessels of larger and larger size -Lymphatic capillaries, lymphatic vessels, lymphatic trunks, and lymphatic
ducts
Question: Metastasis
Correct Answer: Wandering cancerous cells establishing secondary tumors -Develop in other locations in
the body (metastasis) -E.g., breast cancer may metastasize to the lung Cancerous cells -Transported in the
lymph
Question: Lymphatic vessels are ____
Correct Answer: fed by lymphatic capillaries
Question: lymphatic system lacks a ______
Correct Answer: pump; moves lymph using: -Skeletal muscles and respiratory pumps (as seen in veins)
-Pulsatile movement of blood in nearby arteries -Rhythmic contraction of smooth muscle in larger lymph
vessel walls
Question: Lymphatic ducts
Correct Answer: are fed by lymphatic trunks -Largest lymphatic vessels -Bring lymph to venous blood
circulation -There are two: right lymphatic duct and thoracic duct
, Question: Right lymphatic duct
Correct Answer: is near right clavicle Drains upper right quadrant of body -Right side of head and neck,
right upper limb, and right side of thorax Delivers lymph to junction of right subclavian and right internal
jugular veins
Question: Thoracic duct
Correct Answer: is largest lymphatic vessel Runs from diaphragm to junction of left subclavian and left
jugular veins Saclike cisterna chyli at its base -Receives lipid-rich chyle from GI tract Drains lymph from
left side of head and neck, left upper limb, left side of thorax, abdomen, and both lower limbs
Question: Lymphedema
Correct Answer: Accumulation of interstitial fluid due to interference with lymphatic drainage Causes
swelling and pain in affected area Controlled with exercise, massage Extreme cases known as elephantiasis
-Caused by infection with parasitic worms
Question: How does fluid enter lymphatic capillaries?
Correct Answer: The lymph is moved through the body in its own vessels making a one-way journey from
the interstitial spaces to the subclavian veins at the base of the neck. Since the lymphatic system does not
have a heart to pump it, its upward movement depends on the motions of the muscle and joint pumps
Question: What is the order of flow through different lymphatic vessels?
Correct Answer: capillaries vessels trunks ducts
Question: Which lymphatic duct receives lymph from the right leg?
Correct Answer: thoracic duct
Question: What does the acronym MALT stand for?
Correct Answer: mucosa associated lymphatic tissue - associated with small intestine
Question: What is an example of a primary lymphatic structure?
Correct Answer: thymus red bone marrow
Question: what is an example of secondary mephitic structure?
Correct Answer: tonsils lymph nodes (cervical) lymph nodes (axillary) spleen MALT lymph nodes
(inguinal)
Question: Red bone marrow
Correct Answer: spongy bone -In flat bones of skull, ribs, and sternum, vertebrae, ossa coxae, heads of
humerus and femur Site of hemopoiesis -T-lymphocytes and B-lymphocytes
Question: Thymus
Correct Answer: involved in T-lymphocyte maturation Located in superior mediastinum Larger in
children than adults -Grows until puberty, then regresses; gradually replaced by adipose tissue Each lobule
has outer cortex and inner medulla regions
Question: Where does hemopoiesis occur?
Correct Answer: red bone marrow
Question: What is the function of the thymus?
