BIOL 2402 lab exam 3 Practice
Questions with Answers Scored
A+(2025-2026) Updated.
The __________ __________ located in close proximity to blood capillary beds, collect excess
interstitial (extracellular) fluids. This fluid is now called ________ and it flows into consecutively
larger vessels until it is delivered to the heart and the circulatory system. - Answer lymphatic
capillaries
lymph
Loosely dispersed lymphatic tissue with associated lymphocytes called _________
_____________ ___________ _____________, may be found in and around the tissues and
organs of the urinary, reproductive, respiratory, and digestive tracts - Answer mucous
associated lymphatic tissue(MALT)
lymphatic organs - Answer lymph nodes, thymus, spleen
The lymphatic organs - lymph nodes, thymus gland, and spleen - are separated from the
surrounding tissues by fibrous ___________ - Answer capsules
lymphatic nodules found in _________ and _________ lack a capsule. - Answer tonsils,
appendix
The lymphatic capillaries located in the small intestine, called ________, are unique in that they
absorb all dietary lipids that will ultimately be transported to the subclavian veins. - Answer
lacteals
All lymphatic capillaries merge to form larger lymphatic _________, which have valves that
promote the forward movement of lymph in these vessels. - Answer vessels
As the lymphatic vessels are transporting lymph towards the heart, they converge on ________
________, lymphatic organs with dense populations of lymphocytes and macrophages - Answer
lymph nodes
Lymphatic vessels from different regions of the body drain into larger lymphatic ________ -
, The thoracic duct empties into the _________ ___________ vein while the right lymphatic duct
drains into the ______ ___________ vein. Lymph delivered to the circulatory system maintains
blood volume. - Answer left subclavian
right subclavian
__________ lymphatic vessels carry lymph into a lymph node where it is exposed to the
lymphocytes and macrophages housed within the lymph node. - Answer afferent
B lymphocytes reside in __________ centers of lymphatic nodules while T lymphocytes and
macrophages accumulate in the extensions of the nodules called medullary ________ in the
medulla. - Answer germinal
cords
Lymph leaves the lymph node via one or two _______ lymphatic vessels - Answer efferent
Although lymph nodes are found throughout the body, there are large clusters of lymph nodes
in specific regions: - Answer cervical, axillary, inguinal, intestinal, mesenteric, abdominal, and
popliteal lymph nodes
The _________ is an endocrine gland that secretes the hormones thymosin and thymopoietin.
The gland is considered a primary lymphatic organ that is the site of ___lymphocyte maturation
- Answer thymus, T
Once they have been programmed, these naive __________ __ cells clone and migrate to
_________ lymphatic organs that include all other lymphatic organs and tissues throughout the
body. - Answer immunocompetent T, secondary
Similarly, B lymphocytes also go through a programming process but, this occurs in the ______
________. They also clone and naive immunocompetent B-cells migrate to secondary lymphatic
organs. - Answer bone marrow
The thymus gland is largest in size and most active in infants and children but around the time
of puberty, it begins to shrink and become inactive, a process called _________. - Answer
involution
Questions with Answers Scored
A+(2025-2026) Updated.
The __________ __________ located in close proximity to blood capillary beds, collect excess
interstitial (extracellular) fluids. This fluid is now called ________ and it flows into consecutively
larger vessels until it is delivered to the heart and the circulatory system. - Answer lymphatic
capillaries
lymph
Loosely dispersed lymphatic tissue with associated lymphocytes called _________
_____________ ___________ _____________, may be found in and around the tissues and
organs of the urinary, reproductive, respiratory, and digestive tracts - Answer mucous
associated lymphatic tissue(MALT)
lymphatic organs - Answer lymph nodes, thymus, spleen
The lymphatic organs - lymph nodes, thymus gland, and spleen - are separated from the
surrounding tissues by fibrous ___________ - Answer capsules
lymphatic nodules found in _________ and _________ lack a capsule. - Answer tonsils,
appendix
The lymphatic capillaries located in the small intestine, called ________, are unique in that they
absorb all dietary lipids that will ultimately be transported to the subclavian veins. - Answer
lacteals
All lymphatic capillaries merge to form larger lymphatic _________, which have valves that
promote the forward movement of lymph in these vessels. - Answer vessels
As the lymphatic vessels are transporting lymph towards the heart, they converge on ________
________, lymphatic organs with dense populations of lymphocytes and macrophages - Answer
lymph nodes
Lymphatic vessels from different regions of the body drain into larger lymphatic ________ -
, The thoracic duct empties into the _________ ___________ vein while the right lymphatic duct
drains into the ______ ___________ vein. Lymph delivered to the circulatory system maintains
blood volume. - Answer left subclavian
right subclavian
__________ lymphatic vessels carry lymph into a lymph node where it is exposed to the
lymphocytes and macrophages housed within the lymph node. - Answer afferent
B lymphocytes reside in __________ centers of lymphatic nodules while T lymphocytes and
macrophages accumulate in the extensions of the nodules called medullary ________ in the
medulla. - Answer germinal
cords
Lymph leaves the lymph node via one or two _______ lymphatic vessels - Answer efferent
Although lymph nodes are found throughout the body, there are large clusters of lymph nodes
in specific regions: - Answer cervical, axillary, inguinal, intestinal, mesenteric, abdominal, and
popliteal lymph nodes
The _________ is an endocrine gland that secretes the hormones thymosin and thymopoietin.
The gland is considered a primary lymphatic organ that is the site of ___lymphocyte maturation
- Answer thymus, T
Once they have been programmed, these naive __________ __ cells clone and migrate to
_________ lymphatic organs that include all other lymphatic organs and tissues throughout the
body. - Answer immunocompetent T, secondary
Similarly, B lymphocytes also go through a programming process but, this occurs in the ______
________. They also clone and naive immunocompetent B-cells migrate to secondary lymphatic
organs. - Answer bone marrow
The thymus gland is largest in size and most active in infants and children but around the time
of puberty, it begins to shrink and become inactive, a process called _________. - Answer
involution
