BSC2086 Lymphatic System Questions and Answers A+ Graded (2025).

BSC2086 Lymphatic System
Questions and Answers A+ Graded
(2025)




Functions .of .the .lymphatic .system .- .CORRECT .ANSWER--fluid .recovery .
-immunity
-lipid .absorption

lymph .- .CORRECT .ANSWER-the .recovery .fluid .picked .up .by .lymphatic .vessels
.from .the .blood .capillaries


chyle .- .CORRECT .ANSWER-lymph .containing .high .lipid .content .because .of
.lipids .draining .from .lacteals .in .small .intestines .after .a .meal


lymphatic .vessels .- .CORRECT .ANSWER-transport .the .lymph

lymphatic .tissues .- .CORRECT .ANSWER-composed .of .aggregates .of
.lymphocytes .and .macrophages .that .populate .many .organs .of .the .body


what .is .the .route .of .lymph .back .to .the .bloodstream? .- .CORRECT .ANSWER--
lymphatic .capillaries
-collecting .vessels
-lymphatic .trunks
-collecting .ducts
-subclavian .veins

lymphatic .capillaries .- .CORRECT .ANSWER--closed .at .one .end
-composed .of .thin .endothelial .cells .which .create .valvelike .flaps .that .open .when
.interstitial .fluid .pressure .is .high, .and .close .when .it .is .low


how .many .layers .do .lymphatic .vessels .have? .- .CORRECT .ANSWER-three

what .are .the .three .layers .of .lymphatic .vessels .- .CORRECT .ANSWER--tunica
.interna .(composed .of .endothelium .and .valves)
-tunica .media .(composed .of .elastic .fibers .and .smooth .muscle)
-tunica .externa .(thin .outer .layer)

collecting .vessels .of .lymphatic .system .- .CORRECT .ANSWER--often .travel
.alongside .arteries .and .veins

, -pass .through .many .lymph .nodes

how .many .lymphatic .trunks .are .located .in .the .body? .- .CORRECT .ANSWER-six

what .do .the .lymphatic .trunks .do? .- .CORRECT .ANSWER-drain .the .major .portions
.of .the .body


jugular .trunk .- .CORRECT .ANSWER-drains .the .head .and .neck

subclavian .trunk .- .CORRECT .ANSWER-drains .upper .limbs, .superficial .thoracic
.wall, .and .mammary .glands


bronchomediastinal .trunk .- .CORRECT .ANSWER-drains .thoracic .organs .and .deep
.thoracic .wall


intercostal .trunk .- .CORRECT .ANSWER-drains .posterior .thoracic .wall

intestinal .trunk .- .CORRECT .ANSWER-drains .intestines, .stomach, .pancreas,
.spleen, .and .liver


lumbar .trunk .- .CORRECT .ANSWER-drains .lower .limbs, .pelvic .and .abdominal
.walls, .pelvic .organs, .kidneys, .and .adrenal .glands


what .are .the .two .collecting .ducts .of .the .lymphatic .system? .- .CORRECT
.ANSWER--the .right .lymphatic .duct
-the .thoracic .duct

which .of .the .collecting .ducts .is .larger .and .longer? .- .CORRECT .ANSWER-the
.thoracic .duct


right .lymphatic .duct .- .CORRECT .ANSWER--empties .into .the .right .subclavian
.vein
-convergence .of .right .jugular, .right .subclavian, .and .right .bronchomediastinal
.trunks


thoracic .duct .- .CORRECT .ANSWER--larger .and .longer .of .the .two .collecting
.ducts
-begins .just .below .the .diaphragm .where .the .lumbar .trunks .and .intestinal .trunk
.join .to .form .the .cisterna .chyli
-receives .lymph .from .intercostal, .bronchomediastinal, .and .jugular .trunks
-empties .into .left .subclavian .vein

lacteals .- .CORRECT .ANSWER-absorbs .lipids .from .the .small .intestines .because
.lipids .cannot .be .absorbed .directly .into .the .bloodstream


where .are .lacteals .located? .- .CORRECT .ANSWER-in .the .villi .of .the .intestinal .wall

understand .how .lymph .flows .through .the .body .- .CORRECT .ANSWER-*look .in
.notes, .highlighted*